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Previous year question hub

Some Basic Concepts Of Chemistry - Physical Chemistry - Chemistry Previous Year Questions

Practice Some Basic Concepts Of Chemistry - Physical Chemistry - Chemistry previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

164Papers
22Years
246Questions
1Topics

Some Basic Concepts Of Chemistry question pattern

Every graph below is calculated only from this selection.

Questions by year

Year-wise coverage for Some Basic Concepts Of Chemistry. Each bar uses a separate theme-derived color.

Difficulty distribution

How the classified questions are distributed by difficulty.

Easy 176 71.5%
Medium 69 28%
Hard 1 0.4%

Question type distribution

MCQ, numerical, multiple-select and other formats found in these papers.

Numerical Answer Type (NAT) 130 52.8%
Multiple Choices 116 47.2%

Subject weightage

Top subjects by unique question coverage.

Chemistry
246 Qs

Most asked topics

Top topics across the included previous year papers.

Physical Chemistry
246 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Some Basic Concepts Of Chemistry
246 Qs

Paper coverage

Question coverage for the most populated papers. Every active PYP paper remains listed below.

JEE Main 2026 (Online) 5th April Morning Shift
2 Qs
JEE MAIN 2026 ONLINE 22ND JANUARY EVENING SHIFT
2 Qs
JEE Main 2026 (Online) 2nd April Evening Shift
1 Qs
JEE Main 2026 (Online) 2nd April Morning Shift
1 Qs
JEE Main 2026 (Online) 4th April Evening Shift
1 Qs
JEE Main 2026 (Online) 4th April Morning Shift
1 Qs
JEE Main 2026 (Online) 5th April Evening Shift
1 Qs
JEE Main 2026 (Online) 6th April Evening Shift
1 Qs
JEE Main 2026 (Online) 6th April Morning Shift
1 Qs
JEE Main 2026 (Online) 8th April Evening Shift
1 Qs
JEE MAIN 2026 ONLINE 21ST JANUARY EVENING SHIFT
1 Qs
JEE MAIN 2026 ONLINE 21ST JANUARY MORNING SHIFT
1 Qs
JEE MAIN 2026 ONLINE 22ND JANUARY MORNING SHIFT
1 Qs
JEE MAIN 2026 ONLINE 23RD JANUARY MORNING SHIFT
1 Qs
JEE MAIN 2026 ONLINE 24TH JANUARY EVENING SHIFT
1 Qs
JEE MAIN 2026 ONLINE 28TH JANUARY EVENING SHIFT
1 Qs
JEE MAIN 2025 ONLINE 3RD APRIL EVENING SHIFT
4 Qs
JEE MAIN 2025 ONLINE 3RD APRIL MORNING SHIFT
3 Qs
JEE MAIN 2025 ONLINE 22ND JANUARY EVENING SHIFT
2 Qs
JEE MAIN 2025 ONLINE 23RD JANUARY EVENING SHIFT
2 Qs
JEE MAIN 2025 ONLINE 23RD JANUARY MORNING SHIFT
2 Qs
JEE MAIN 2025 ONLINE 24TH JANUARY MORNING SHIFT
2 Qs
JEE MAIN 2025 ONLINE 28TH JANUARY MORNING SHIFT
2 Qs
JEE MAIN 2025 ONLINE 2ND APRIL MORNING SHIFT
2 Qs
JEE MAIN 2025 ONLINE 7TH APRIL MORNING SHIFT
2 Qs
JEE MAIN 2025 ONLINE 8TH APRIL EVENING SHIFT
2 Qs
JEE MAIN 2025 ONLINE 24TH JANUARY EVENING SHIFT
1 Qs
JEE MAIN 2025 ONLINE 28TH JANUARY EVENING SHIFT
1 Qs
JEE MAIN 2025 ONLINE 29TH JANUARY MORNING SHIFT
1 Qs
JEE MAIN 2025 ONLINE 4TH APRIL EVENING SHIFT
1 Qs
JEE MAIN 2025 ONLINE 4TH APRIL MORNING SHIFT
1 Qs
JEE MAIN 2025 ONLINE 7TH APRIL EVENING SHIFT
1 Qs
JEE MAIN 2024 ONLINE 27TH JANUARY EVENING SHIFT
3 Qs
JEE MAIN 2024 ONLINE 29TH JANUARY EVENING SHIFT
2 Qs
JEE MAIN 2024 ONLINE 30TH JANUARY MORNING SHIFT
2 Qs
JEE MAIN 2024 ONLINE 31ST JANUARY EVENING SHIFT
2 Qs
JEE MAIN 2024 ONLINE 31ST JANUARY MORNING SHIFT
2 Qs
JEE MAIN 2024 ONLINE 4TH APRIL MORNING SHIFT
2 Qs
JEE MAIN 2024 ONLINE 8TH APRIL EVENING SHIFT
2 Qs
JEE MAIN 2024 ONLINE 1ST FEBRUARY EVENING SHIFT
1 Qs
JEE MAIN 2024 ONLINE 1ST FEBRUARY MORNING SHIFT
1 Qs
JEE MAIN 2024 ONLINE 27TH JANUARY MORNING SHIFT
1 Qs
JEE MAIN 2024 ONLINE 29TH JANUARY MORNING SHIFT
1 Qs
JEE MAIN 2024 ONLINE 30TH JANUARY EVENING SHIFT
1 Qs
JEE MAIN 2024 ONLINE 4TH APRIL EVENING SHIFT
1 Qs
JEE MAIN 2024 ONLINE 5TH APRIL EVENING SHIFT
1 Qs
JEE MAIN 2024 ONLINE 5TH APRIL MORNING SHIFT
1 Qs
JEE MAIN 2024 ONLINE 6TH APRIL EVENING SHIFT
1 Qs
JEE MAIN 2024 ONLINE 6TH APRIL MORNING SHIFT
1 Qs
JEE MAIN 2024 ONLINE 8TH APRIL MORNING SHIFT
1 Qs
JEE MAIN 2024 ONLINE 9TH APRIL MORNING SHIFT
1 Qs
JEE MAIN 2023 ONLINE 29TH JANUARY EVENING SHIFT
3 Qs
JEE MAIN 2023 ONLINE 31ST JANUARY EVENING SHIFT
3 Qs
JEE MAIN 2023 ONLINE 10TH APRIL EVENING SHIFT
2 Qs
JEE MAIN 2023 ONLINE 11TH APRIL EVENING SHIFT
2 Qs
JEE MAIN 2023 ONLINE 13TH APRIL MORNING SHIFT
2 Qs
JEE MAIN 2023 ONLINE 24TH JANUARY MORNING SHIFT
2 Qs
JEE MAIN 2023 ONLINE 25TH JANUARY EVENING SHIFT
2 Qs
JEE MAIN 2023 ONLINE 25TH JANUARY MORNING SHIFT
2 Qs
JEE MAIN 2023 ONLINE 30TH JANUARY EVENING SHIFT
2 Qs
JEE MAIN 2023 ONLINE 31ST JANUARY MORNING SHIFT
2 Qs
JEE MAIN 2023 ONLINE 10TH APRIL MORNING SHIFT
1 Qs
JEE MAIN 2023 ONLINE 11TH APRIL MORNING SHIFT
1 Qs
JEE MAIN 2023 ONLINE 12TH APRIL MORNING SHIFT
1 Qs
JEE MAIN 2023 ONLINE 13TH APRIL EVENING SHIFT
1 Qs
JEE MAIN 2023 ONLINE 15TH APRIL MORNING SHIFT
1 Qs
JEE MAIN 2023 ONLINE 1ST FEBRUARY EVENING SHIFT
1 Qs
JEE MAIN 2023 ONLINE 1ST FEBRUARY MORNING SHIFT
1 Qs
JEE MAIN 2023 ONLINE 24TH JANUARY EVENING SHIFT
1 Qs
JEE MAIN 2023 ONLINE 30TH JANUARY MORNING SHIFT
1 Qs
JEE MAIN 2023 ONLINE 6TH APRIL EVENING SHIFT
1 Qs
JEE MAIN 2023 ONLINE 6TH APRIL MORNING SHIFT
1 Qs
JEE MAIN 2023 ONLINE 8TH APRIL EVENING SHIFT
1 Qs
JEE MAIN 2023 ONLINE 8TH APRIL MORNING SHIFT
1 Qs
JEE MAIN 2022 ONLINE 25TH JUNE MORNING SHIFT
3 Qs
JEE MAIN 2022 ONLINE 27TH JULY MORNING SHIFT
3 Qs
JEE MAIN 2022 ONLINE 29TH JULY EVENING SHIFT
3 Qs
JEE MAIN 2022 ONLINE 24TH JUNE MORNING SHIFT
2 Qs
JEE MAIN 2022 ONLINE 25TH JULY EVENING SHIFT
2 Qs
JEE MAIN 2022 ONLINE 26TH JULY EVENING SHIFT
2 Qs
JEE MAIN 2022 ONLINE 26TH JULY MORNING SHIFT
2 Qs
JEE MAIN 2022 ONLINE 26TH JUNE EVENING SHIFT
2 Qs
JEE MAIN 2022 ONLINE 26TH JUNE MORNING SHIFT
2 Qs
JEE MAIN 2022 ONLINE 28TH JULY MORNING SHIFT
2 Qs
JEE MAIN 2022 ONLINE 28TH JUNE EVENING SHIFT
2 Qs
JEE MAIN 2022 ONLINE 24TH JUNE EVENING SHIFT
1 Qs
JEE MAIN 2022 ONLINE 25TH JULY MORNING SHIFT
1 Qs
JEE MAIN 2022 ONLINE 25TH JUNE EVENING SHIFT
1 Qs
JEE MAIN 2022 ONLINE 27TH JUNE EVENING SHIFT
1 Qs
JEE MAIN 2022 ONLINE 27TH JUNE MORNING SHIFT
1 Qs
JEE MAIN 2022 ONLINE 28TH JULY EVENING SHIFT
1 Qs
JEE MAIN 2022 ONLINE 29TH JULY MORNING SHIFT
1 Qs
JEE MAIN 2022 ONLINE 29TH JUNE EVENING SHIFT
1 Qs
JEE MAIN 2022 ONLINE 29TH JUNE MORNING SHIFT
1 Qs
JEE MAIN 2022 ONLINE 30TH JUNE MORNING SHIFT
1 Qs
JEE MAIN 2021 ONLINE 16TH MARCH MORNING SHIFT
3 Qs
JEE MAIN 2021 ONLINE 18TH MARCH MORNING SHIFT
3 Qs
JEE Main 2021 (Online) 24th February Evening Shift
2 Qs
JEE Main 2021 (Online) 25th February Morning Shift
2 Qs
JEE MAIN 2021 ONLINE 16TH MARCH EVENING SHIFT
2 Qs
JEE MAIN 2021 ONLINE 17TH MARCH MORNING SHIFT
2 Qs
JEE MAIN 2021 ONLINE 1ST SEPTEMBER EVENING SHIFT
2 Qs
JEE MAIN 2021 ONLINE 20TH JULY MORNING SHIFT
2 Qs
JEE MAIN 2021 ONLINE 25TH JULY MORNING SHIFT
2 Qs
JEE Main 2021 (Online) 24th February Morning Shift
1 Qs
JEE Main 2021 (Online) 26th February Evening Shift
1 Qs
JEE Main 2021 (Online) 26th February Morning Shift
1 Qs
JEE MAIN 2021 ONLINE 17TH MARCH EVENING SHIFT
1 Qs
JEE MAIN 2021 ONLINE 18TH MARCH EVENING SHIFT
1 Qs
JEE MAIN 2021 ONLINE 20TH JULY EVENING SHIFT
1 Qs
JEE MAIN 2021 ONLINE 22TH JULY EVENING SHIFT
1 Qs
JEE MAIN 2021 ONLINE 25TH JULY EVENING SHIFT
1 Qs
JEE MAIN 2021 ONLINE 26TH AUGUST EVENING SHIFT
1 Qs
JEE MAIN 2021 ONLINE 26TH AUGUST MORNING SHIFT
1 Qs
JEE MAIN 2021 ONLINE 27TH AUGUST EVENING SHIFT
1 Qs
JEE MAIN 2021 ONLINE 27TH AUGUST MORNING SHIFT
1 Qs
JEE MAIN 2021 ONLINE 27TH JULY EVENING SHIFT
1 Qs
JEE MAIN 2021 ONLINE 27TH JULY MORNING SHIFT
1 Qs
JEE MAIN 2021 ONLINE 31ST AUGUST EVENING SHIFT
1 Qs
JEE MAIN 2021 ONLINE 31ST AUGUST MORNING SHIFT
1 Qs
JEE MAIN 2020 ONLINE 3RD SEPTEMBER EVENING SLOT
3 Qs
JEE MAIN 2020 ONLINE 3RD SEPTEMBER MORNING SLOT
2 Qs
JEE MAIN 2020 ONLINE 4TH SEPTEMBER MORNING SLOT
2 Qs
JEE MAIN 2020 ONLINE 7TH JANUARY EVENING SLOT
2 Qs
JEE MAIN 2020 ONLINE 8TH JANUARY MORNING SLOT
2 Qs
JEE MAIN 2020 ONLINE 9TH JANUARY MORNING SLOT
2 Qs
JEE MAIN 2020 ONLINE 2ND SEPTEMBER EVENING SLOT
1 Qs
JEE MAIN 2020 ONLINE 4TH SEPTEMBER EVENING SLOT
1 Qs
JEE MAIN 2020 ONLINE 6TH SEPTEMBER EVENING SLOT
1 Qs
JEE MAIN 2020 ONLINE 6TH SEPTEMBER MORNING SLOT
1 Qs
JEE MAIN 2020 ONLINE 7TH JANUARY MORNING SLOT
1 Qs
JEE MAIN 2020 ONLINE 9TH JANUARY EVENING SLOT
1 Qs
JEE MAIN 2019 ONLINE 11TH JANUARY MORNING SLOT
2 Qs
JEE MAIN 2019 ONLINE 12TH APRIL EVENING SLOT
2 Qs
JEE MAIN 2019 ONLINE 12TH APRIL MORNING SLOT
2 Qs
JEE MAIN 2019 ONLINE 10TH APRIL EVENING SLOT
1 Qs
JEE MAIN 2019 ONLINE 10TH APRIL MORNING SLOT
1 Qs
JEE MAIN 2019 ONLINE 10TH JANUARY EVENING SLOT
1 Qs
JEE MAIN 2019 ONLINE 11TH JANUARY EVENING SLOT
1 Qs
JEE MAIN 2019 ONLINE 12TH JANUARY EVENING SLOT
1 Qs
JEE MAIN 2019 ONLINE 8TH APRIL EVENING SLOT
1 Qs
JEE MAIN 2019 ONLINE 9TH APRIL EVENING SLOT
1 Qs
JEE MAIN 2019 ONLINE 9TH APRIL MORNING SLOT
1 Qs
JEE MAIN 2019 ONLINE 9TH JANUARY EVENING SLOT
1 Qs
JEE MAIN 2019 ONLINE 9TH JANUARY MORNING SLOT
1 Qs
JEE MAIN 2018 OFFLINE
1 Qs
JEE MAIN 2018 ONLINE 15TH APRIL EVENING SLOT
1 Qs
JEE MAIN 2018 ONLINE 15TH APRIL MORNING SLOT
1 Qs
JEE MAIN 2018 ONLINE 16TH APRIL MORNING SLOT
1 Qs
JEE MAIN 2017 OFFLINE
2 Qs
JEE MAIN 2017 ONLINE 8TH APRIL MORNING SLOT
1 Qs
JEE MAIN 2017 ONLINE 9TH APRIL MORNING SLOT
1 Qs
JEE MAIN 2016 ONLINE 9TH APRIL MORNING SLOT
2 Qs
JEE MAIN 2015 OFFLINE
1 Qs
JEE MAIN 2014 OFFLINE
1 Qs
JEE MAIN 2013 OFFLINE
3 Qs
AIEEE 2012
1 Qs
AIEEE 2011
1 Qs
AIEEE 2007
2 Qs
AIEEE 2006
2 Qs
AIEEE 2005
2 Qs
AIEEE 2004
3 Qs
AIEEE 2003
2 Qs
AIEEE 2002
3 Qs

Included previous year papers

Newest papers appear first. Sort by year, question coverage or name.

PaperYear / sessionQuestions in this viewOpen
JEE Main 2026 (Online) 2nd April Evening Shift20261View paper
JEE Main 2026 (Online) 2nd April Morning Shift20261View paper
JEE Main 2026 (Online) 4th April Evening Shift20261View paper
JEE Main 2026 (Online) 4th April Morning Shift20261View paper
JEE Main 2026 (Online) 5th April Evening Shift20261View paper
JEE Main 2026 (Online) 5th April Morning Shift20262View paper
JEE Main 2026 (Online) 6th April Evening Shift20261View paper
JEE Main 2026 (Online) 6th April Morning Shift20261View paper
JEE Main 2026 (Online) 8th April Evening Shift20261View paper
JEE MAIN 2026 ONLINE 21ST JANUARY EVENING SHIFT20261View paper
JEE MAIN 2026 ONLINE 21ST JANUARY MORNING SHIFT20261View paper
JEE MAIN 2026 ONLINE 22ND JANUARY EVENING SHIFT20262View paper
JEE MAIN 2026 ONLINE 22ND JANUARY MORNING SHIFT20261View paper
JEE MAIN 2026 ONLINE 23RD JANUARY MORNING SHIFT20261View paper
JEE MAIN 2026 ONLINE 24TH JANUARY EVENING SHIFT20261View paper
JEE MAIN 2026 ONLINE 28TH JANUARY EVENING SHIFT20261View paper
JEE MAIN 2025 ONLINE 22ND JANUARY EVENING SHIFT20252View paper
JEE MAIN 2025 ONLINE 23RD JANUARY EVENING SHIFT20252View paper
JEE MAIN 2025 ONLINE 23RD JANUARY MORNING SHIFT20252View paper
JEE MAIN 2025 ONLINE 24TH JANUARY EVENING SHIFT20251View paper
JEE MAIN 2025 ONLINE 24TH JANUARY MORNING SHIFT20252View paper
JEE MAIN 2025 ONLINE 28TH JANUARY EVENING SHIFT20251View paper
JEE MAIN 2025 ONLINE 28TH JANUARY MORNING SHIFT20252View paper
JEE MAIN 2025 ONLINE 29TH JANUARY MORNING SHIFT20251View paper
JEE MAIN 2025 ONLINE 2ND APRIL MORNING SHIFT20252View paper
JEE MAIN 2025 ONLINE 3RD APRIL EVENING SHIFT20254View paper
JEE MAIN 2025 ONLINE 3RD APRIL MORNING SHIFT20253View paper
JEE MAIN 2025 ONLINE 4TH APRIL EVENING SHIFT20251View paper
JEE MAIN 2025 ONLINE 4TH APRIL MORNING SHIFT20251View paper
JEE MAIN 2025 ONLINE 7TH APRIL EVENING SHIFT20251View paper
JEE MAIN 2025 ONLINE 7TH APRIL MORNING SHIFT20252View paper
JEE MAIN 2025 ONLINE 8TH APRIL EVENING SHIFT20252View paper
JEE MAIN 2024 ONLINE 1ST FEBRUARY EVENING SHIFT20241View paper
JEE MAIN 2024 ONLINE 1ST FEBRUARY MORNING SHIFT20241View paper
JEE MAIN 2024 ONLINE 27TH JANUARY EVENING SHIFT20243View paper
JEE MAIN 2024 ONLINE 27TH JANUARY MORNING SHIFT20241View paper
JEE MAIN 2024 ONLINE 29TH JANUARY EVENING SHIFT20242View paper
JEE MAIN 2024 ONLINE 29TH JANUARY MORNING SHIFT20241View paper
JEE MAIN 2024 ONLINE 30TH JANUARY EVENING SHIFT20241View paper
JEE MAIN 2024 ONLINE 30TH JANUARY MORNING SHIFT20242View paper
JEE MAIN 2024 ONLINE 31ST JANUARY EVENING SHIFT20242View paper
JEE MAIN 2024 ONLINE 31ST JANUARY MORNING SHIFT20242View paper
JEE MAIN 2024 ONLINE 4TH APRIL EVENING SHIFT20241View paper
JEE MAIN 2024 ONLINE 4TH APRIL MORNING SHIFT20242View paper
JEE MAIN 2024 ONLINE 5TH APRIL EVENING SHIFT20241View paper
JEE MAIN 2024 ONLINE 5TH APRIL MORNING SHIFT20241View paper
JEE MAIN 2024 ONLINE 6TH APRIL EVENING SHIFT20241View paper
JEE MAIN 2024 ONLINE 6TH APRIL MORNING SHIFT20241View paper
JEE MAIN 2024 ONLINE 8TH APRIL EVENING SHIFT20242View paper
JEE MAIN 2024 ONLINE 8TH APRIL MORNING SHIFT20241View paper
JEE MAIN 2024 ONLINE 9TH APRIL MORNING SHIFT20241View paper
JEE MAIN 2023 ONLINE 10TH APRIL EVENING SHIFT20232View paper
JEE MAIN 2023 ONLINE 10TH APRIL MORNING SHIFT20231View paper
JEE MAIN 2023 ONLINE 11TH APRIL EVENING SHIFT20232View paper
JEE MAIN 2023 ONLINE 11TH APRIL MORNING SHIFT20231View paper
JEE MAIN 2023 ONLINE 12TH APRIL MORNING SHIFT20231View paper
JEE MAIN 2023 ONLINE 13TH APRIL EVENING SHIFT20231View paper
JEE MAIN 2023 ONLINE 13TH APRIL MORNING SHIFT20232View paper
JEE MAIN 2023 ONLINE 15TH APRIL MORNING SHIFT20231View paper
JEE MAIN 2023 ONLINE 1ST FEBRUARY EVENING SHIFT20231View paper
JEE MAIN 2023 ONLINE 1ST FEBRUARY MORNING SHIFT20231View paper
JEE MAIN 2023 ONLINE 24TH JANUARY EVENING SHIFT20231View paper
JEE MAIN 2023 ONLINE 24TH JANUARY MORNING SHIFT20232View paper
JEE MAIN 2023 ONLINE 25TH JANUARY EVENING SHIFT20232View paper
JEE MAIN 2023 ONLINE 25TH JANUARY MORNING SHIFT20232View paper
JEE MAIN 2023 ONLINE 29TH JANUARY EVENING SHIFT20233View paper
JEE MAIN 2023 ONLINE 30TH JANUARY EVENING SHIFT20232View paper
JEE MAIN 2023 ONLINE 30TH JANUARY MORNING SHIFT20231View paper
JEE MAIN 2023 ONLINE 31ST JANUARY EVENING SHIFT20233View paper
JEE MAIN 2023 ONLINE 31ST JANUARY MORNING SHIFT20232View paper
JEE MAIN 2023 ONLINE 6TH APRIL EVENING SHIFT20231View paper
JEE MAIN 2023 ONLINE 6TH APRIL MORNING SHIFT20231View paper
JEE MAIN 2023 ONLINE 8TH APRIL EVENING SHIFT20231View paper
JEE MAIN 2023 ONLINE 8TH APRIL MORNING SHIFT20231View paper
JEE MAIN 2022 ONLINE 24TH JUNE EVENING SHIFT20221View paper
JEE MAIN 2022 ONLINE 24TH JUNE MORNING SHIFT20222View paper
JEE MAIN 2022 ONLINE 25TH JULY EVENING SHIFT20222View paper
JEE MAIN 2022 ONLINE 25TH JULY MORNING SHIFT20221View paper
JEE MAIN 2022 ONLINE 25TH JUNE EVENING SHIFT20221View paper
JEE MAIN 2022 ONLINE 25TH JUNE MORNING SHIFT20223View paper
JEE MAIN 2022 ONLINE 26TH JULY EVENING SHIFT20222View paper
JEE MAIN 2022 ONLINE 26TH JULY MORNING SHIFT20222View paper
JEE MAIN 2022 ONLINE 26TH JUNE EVENING SHIFT20222View paper
JEE MAIN 2022 ONLINE 26TH JUNE MORNING SHIFT20222View paper
JEE MAIN 2022 ONLINE 27TH JULY MORNING SHIFT20223View paper
JEE MAIN 2022 ONLINE 27TH JUNE EVENING SHIFT20221View paper
JEE MAIN 2022 ONLINE 27TH JUNE MORNING SHIFT20221View paper
JEE MAIN 2022 ONLINE 28TH JULY EVENING SHIFT20221View paper
JEE MAIN 2022 ONLINE 28TH JULY MORNING SHIFT20222View paper
JEE MAIN 2022 ONLINE 28TH JUNE EVENING SHIFT20222View paper
JEE MAIN 2022 ONLINE 29TH JULY EVENING SHIFT20223View paper
JEE MAIN 2022 ONLINE 29TH JULY MORNING SHIFT20221View paper
JEE MAIN 2022 ONLINE 29TH JUNE EVENING SHIFT20221View paper
JEE MAIN 2022 ONLINE 29TH JUNE MORNING SHIFT20221View paper
JEE MAIN 2022 ONLINE 30TH JUNE MORNING SHIFT20221View paper
JEE Main 2021 (Online) 24th February Evening Shift20212View paper
JEE Main 2021 (Online) 24th February Morning Shift20211View paper
JEE Main 2021 (Online) 25th February Morning Shift20212View paper
JEE Main 2021 (Online) 26th February Evening Shift20211View paper
JEE Main 2021 (Online) 26th February Morning Shift20211View paper
JEE MAIN 2021 ONLINE 16TH MARCH EVENING SHIFT20212View paper
JEE MAIN 2021 ONLINE 16TH MARCH MORNING SHIFT20213View paper
JEE MAIN 2021 ONLINE 17TH MARCH EVENING SHIFT20211View paper
JEE MAIN 2021 ONLINE 17TH MARCH MORNING SHIFT20212View paper
JEE MAIN 2021 ONLINE 18TH MARCH EVENING SHIFT20211View paper
JEE MAIN 2021 ONLINE 18TH MARCH MORNING SHIFT20213View paper
JEE MAIN 2021 ONLINE 1ST SEPTEMBER EVENING SHIFT20212View paper
JEE MAIN 2021 ONLINE 20TH JULY EVENING SHIFT20211View paper
JEE MAIN 2021 ONLINE 20TH JULY MORNING SHIFT20212View paper
JEE MAIN 2021 ONLINE 22TH JULY EVENING SHIFT20211View paper
JEE MAIN 2021 ONLINE 25TH JULY EVENING SHIFT20211View paper
JEE MAIN 2021 ONLINE 25TH JULY MORNING SHIFT20212View paper
JEE MAIN 2021 ONLINE 26TH AUGUST EVENING SHIFT20211View paper
JEE MAIN 2021 ONLINE 26TH AUGUST MORNING SHIFT20211View paper
JEE MAIN 2021 ONLINE 27TH AUGUST EVENING SHIFT20211View paper
JEE MAIN 2021 ONLINE 27TH AUGUST MORNING SHIFT20211View paper
JEE MAIN 2021 ONLINE 27TH JULY EVENING SHIFT20211View paper
JEE MAIN 2021 ONLINE 27TH JULY MORNING SHIFT20211View paper
JEE MAIN 2021 ONLINE 31ST AUGUST EVENING SHIFT20211View paper
JEE MAIN 2021 ONLINE 31ST AUGUST MORNING SHIFT20211View paper
JEE MAIN 2020 ONLINE 2ND SEPTEMBER EVENING SLOT20201View paper
JEE MAIN 2020 ONLINE 3RD SEPTEMBER EVENING SLOT20203View paper
JEE MAIN 2020 ONLINE 3RD SEPTEMBER MORNING SLOT20202View paper
JEE MAIN 2020 ONLINE 4TH SEPTEMBER EVENING SLOT20201View paper
JEE MAIN 2020 ONLINE 4TH SEPTEMBER MORNING SLOT20202View paper
JEE MAIN 2020 ONLINE 6TH SEPTEMBER EVENING SLOT20201View paper
JEE MAIN 2020 ONLINE 6TH SEPTEMBER MORNING SLOT20201View paper
JEE MAIN 2020 ONLINE 7TH JANUARY EVENING SLOT20202View paper
JEE MAIN 2020 ONLINE 7TH JANUARY MORNING SLOT20201View paper
JEE MAIN 2020 ONLINE 8TH JANUARY MORNING SLOT20202View paper
JEE MAIN 2020 ONLINE 9TH JANUARY EVENING SLOT20201View paper
JEE MAIN 2020 ONLINE 9TH JANUARY MORNING SLOT20202View paper
JEE MAIN 2019 ONLINE 10TH APRIL EVENING SLOT20191View paper
JEE MAIN 2019 ONLINE 10TH APRIL MORNING SLOT20191View paper
JEE MAIN 2019 ONLINE 10TH JANUARY EVENING SLOT20191View paper
JEE MAIN 2019 ONLINE 11TH JANUARY EVENING SLOT20191View paper
JEE MAIN 2019 ONLINE 11TH JANUARY MORNING SLOT20192View paper
JEE MAIN 2019 ONLINE 12TH APRIL EVENING SLOT20192View paper
JEE MAIN 2019 ONLINE 12TH APRIL MORNING SLOT20192View paper
JEE MAIN 2019 ONLINE 12TH JANUARY EVENING SLOT20191View paper
JEE MAIN 2019 ONLINE 8TH APRIL EVENING SLOT20191View paper
JEE MAIN 2019 ONLINE 9TH APRIL EVENING SLOT20191View paper
JEE MAIN 2019 ONLINE 9TH APRIL MORNING SLOT20191View paper
JEE MAIN 2019 ONLINE 9TH JANUARY EVENING SLOT20191View paper
JEE MAIN 2019 ONLINE 9TH JANUARY MORNING SLOT20191View paper
JEE MAIN 2018 OFFLINE20181View paper
JEE MAIN 2018 ONLINE 15TH APRIL EVENING SLOT20181View paper
JEE MAIN 2018 ONLINE 15TH APRIL MORNING SLOT20181View paper
JEE MAIN 2018 ONLINE 16TH APRIL MORNING SLOT20181View paper
JEE MAIN 2017 OFFLINE20172View paper
JEE MAIN 2017 ONLINE 8TH APRIL MORNING SLOT20171View paper
JEE MAIN 2017 ONLINE 9TH APRIL MORNING SLOT20171View paper
JEE MAIN 2016 ONLINE 9TH APRIL MORNING SLOT20162View paper
JEE MAIN 2015 OFFLINE20151View paper
JEE MAIN 2014 OFFLINE20141View paper
JEE MAIN 2013 OFFLINE20133View paper
AIEEE 201220121View paper
AIEEE 201120111View paper
AIEEE 200720072View paper
AIEEE 200620062View paper
AIEEE 200520052View paper
AIEEE 200420043View paper
AIEEE 200320032View paper
AIEEE 200220023View paper

All Some Basic Concepts Of Chemistry previous year questions

Practice every matching question in batches of 20, with every available option.

1
2002 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
AIEEE 2002
In a compound C, H and N atoms are present in 9 : 1 : 3.5 by weight . Molecular weight of the compound is 108 g mol-1 . Molecular formula of compound is
A
C2H6N2
B
C3H4N
C
C6H8N2
D
C9H12N3
Open complete paper
2
2002 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
AIEEE 2002
With increase of temperature, which of these changes?
A
molality
B
weight fraction of solute
C
molarity
D
mole fraction
Open complete paper
3
2002 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
AIEEE 2002
Number of atoms in 558.5 gram Fe (at. wt. of Fe = 55.85 g mol-1) is
A
twice that in 60 g carbon
B
6.023 \(\times\) 1022
C
half that in 8 g He
D
558.5 \(\times\) 6.023 \(\times\) 1023
Open complete paper
4
2003 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
AIEEE 2003
What volume of hydrogen gas at 273 K and 1 atm pressure will be consumed in obtaining 21.6 g of elemental boron (atomic mass = 10.8) from the reduction of boron trichloride by hydrogen?
A
67.2 L
B
44.8 L
C
22.4 L
D
89.6 L
Open complete paper
5
2003 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
AIEEE 2003
25 ml of a solution of barium hydroxide on titration with a 0.1 molar solution of hydrochloric acid gave a litre value of 35 ml. The molarity of barium hydroxide solution was
A
0.14
B
0.28
C
0.35
D
0.07
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6
2004 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
AIEEE 2004
6.02 \(\times\) 1020 molecules of urea are present in 100 ml of its solution. The concentration of urea solution is
(Avogadro constant, NA = 6.02 \(\times\) 1023 mol-1)
A
0.02 M
B
0.01 M
C
0.001 M
D
0.1 M
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7
2004 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
AIEEE 2004
The ammonia evolved from the treatment of 0.30 g of an organic compound for the estimation of nitrogen was passed in 100 mL of 0.1 M sulphuric acid. The excess of acid required 20 mL of 0.5 M sodium hydroxide solution for complete neutralization. The organic compound is
A
urea
B
benzamide
C
acetamide
D
thiourea
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8
2004 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
AIEEE 2004
To neutralise completely 20 mL of 0.1 M aqueous solution of phosphorous acid (H3PO3), the volume of 0.1 M aqueous KOH solution required is
A
40 mL
B
20 mL
C
10 mL
D
60 mL
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9
2005 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
AIEEE 2005
Two solutions of a substance (non electrolyte) are mixed in the following manner. 480 ml of 1.5 M first solution + 520 ml of 1.2 M second solution. What is the molarity of the final mixture?
A
2.70 M
B
1.344 M
C
1.50 M
D
1.20 M
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10
2005 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
AIEEE 2005
If we consider that 1/6, in place of 1/12, mass of carbon atom is taken to be the relative atomic mass unit, the mass of one mole of the substance will
A
be a function of the molecular mass of the substance
B
remain unchanged
C
increase two fold
D
decrease twice
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11
2006 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
AIEEE 2006
How many moles of magnesium phosphate Mg3(PO4)2 will contain 0.25 mole of oxygen atoms?
A
1.25 \(\times\) 10-2
B
2.5 \(\times\) 10-2
C
0.02
D
3.125 \(\times\) 10-2
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12
2006 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
AIEEE 2006
Density of a 2.05M solution of acetic acid in water is 1.02 g/mL The molality of the solution is
A
2.28 mol kg-1
B
0.44 mol kg-1
C
1.14 mol kg-1
D
3.28 mol kg-1
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13
2007 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
AIEEE 2007
In the reaction

2Al(s) + 6HCl(aq) \(\to\) 2Al3+ (aq) + 6Cl-(aq) + 3H2(g)
A
11.2 L H2(g) at STP is produced for every mole HCl(aq) consumed
B
6 L HCl(aq) is consumed for every 3L H2(g) produced
C
33.6 L H2(g) is produced regardless of temperature and pressure for every mole that reacts
D
67.2 H2(g) at STP is produced for every mole Al that reacts
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14
2007 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
AIEEE 2007
The density (in g mL-1) of a 3.60 M sulphuric acid solution that is 29% H2SO4 (molar mass = 98 g mol-1) by mass will be
A
1.45
B
1.64
C
1.88
D
1.22
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15
2011 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
AIEEE 2011
A 5.2 molal aqueous solution of methyl alcohol, CH3OH, is supplied. What is the mole fraction of methyl alcohol in the solution ?
A
0.190
B
0.086
C
0.050
D
0.100
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16
2012 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
AIEEE 2012
The density of a solution prepared by dissolving 120 g of urea (mol. Mass = 60 u ) in 1000g of water is 1.15 g/mL. The molarity of this solution is :
A
0.50 M
B
1.78 M
C
1.02 M
D
2.05 M
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17
2013 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
JEE MAIN 2013 OFFLINE
Experimentally it was found that a metal oxide has formula M0.98O. Metal M, present as M2+ and M3+ in its oxide. Fraction of the metal which exists as M3+ would be
A
7.01%
B
4.08%
C
6.05%
D
5.08%
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18
2013 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
JEE MAIN 2013 OFFLINE
The molarity of a solution obtained by mixing 750 mL of 0.5 (M) HCl with 250 mL of 2(M) HCl will be:
A
1.00 M
B
1. 75 M
C
0.975 M
D
0.875 M
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19
2013 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
JEE MAIN 2013 OFFLINE
A gaseous hydrocarbon gives upon combustion 0.72 g of water and 3.08 g of CO2. The empirical formula of the hydrocarbon is
A
C2H4
B
C3H4
C
C6H5
D
C7H8
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20
2014 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
JEE MAIN 2014 OFFLINE
The ratio of masses of oxygen and nitrogen in a particular gaseous mixture is 1 : 4. The ratio of number of their molecule is:
A
1: 8
B
3 : 16
C
1 : 4
D
7 : 32
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