Periodic Table - Inorganic Chemistry - Chemistry Previous Year Questions

1

2016 · Chemistry · Inorganic Chemistry · Periodic Table

WB JEE 2016

An element X belongs to fourth period and fifteenth group of the periodic table. Which of the following statements is true?

A

It has completely filled s-orbital and a partially filled d-orbital

B

It has completely filled s-and p-orbitals and a partially filled d-orbital

C

It has completely filled s- and p-orbitals and a half filled d-orbital

D

It has a half filled p-orbital and completely filled s-and d-orbitals

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2

2016 · Chemistry · Inorganic Chemistry · Periodic Table

WB JEE 2016

Which of the following arrangements is correct in respect of solubility in water?

A

CaSO₄ > BaSO₄ > BeSO₄ > MgSO₄ > SrSO₄

B

BeSO₄ > MgSO₄ > CaSO₄ > SrSO₄ > BaSO₄

C

BaSO₄ > SrSO₄ > CaSO₄ > MgSO₄ > BeSO₄

D

BeSO₄ > CaSO₄ > MgSO₄ > SrSO₄ > BaSO₄

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3

2017 · Chemistry · Inorganic Chemistry · Periodic Table

WB JEE 2017

Which of the following atoms should have the highest 1^st electron affinity?

A

F

B

O

C

N

D

C

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4

2018 · Chemistry · Inorganic Chemistry · Periodic Table

WB JEE 2018

Out of the following outer electronic configurations of atoms, the highest oxidation state is achieved by which one?

A

\((n - 1){d^8}n{s^2}\)

B

\((n - 1){d^5}n{s^2}\)

C

\((n - 1){d^3}n{s^2}\)

D

\((n - 1){d^5}n{s^1}\)

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5

2019 · Chemistry · Inorganic Chemistry · Periodic Table

WB JEE 2019

The melting points of (i) BeCl₂ (ii) CaCl₂ and (iii) HgCl₂ follows the order

A

i < ii < iii

B

iii < i < ii

C

i < iii < ii

D

ii < i < iii

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6

2019 · Chemistry · Inorganic Chemistry · Periodic Table

WB JEE 2019

The second ionization energy of the following elements follows the order

A

Zn > Cd < Hg

B

Zn > Cd > Hg

C

Cd > Hg < Zn

D

Zn < C < Hg

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7

2019 · Chemistry · Inorganic Chemistry · Periodic Table

WB JEE 2019

The first electron affinity of C, N and O will be of the order

A

C < N < O

B

N < C < O

C

C < O < N

D

O < N < C

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8

2019 · Chemistry · Inorganic Chemistry · Periodic Table

WB JEE 2019

Which of these species will have non-zero magnetic moment?

A

Na⁺

B

Mg

C

F^\(-\)

D

Ar⁺

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9

2020 · Chemistry · Inorganic Chemistry · Periodic Table

WB JEE 2020

Which of the following statements is not true for the reaction, 2F₂ + 2H₂O \(\to\) 4HF + O₂ ?

A

F₂ is more strongly oxidising than O₂

B

F \(-\)F bond is weaker than O = O bond

C

H \(-\)F bond is stronger than H\(-\)O bond

D

F is less electronegative than O

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10

2021 · Chemistry · Inorganic Chemistry · Periodic Table

WB JEE 2021

5.75 mg of sodium vapour is converted to sodium ion. If the ionisation energy of sodium is 490 kJ mol^\(-\)1 and atomic weight is 23 units, the amount of energy needed for this conversion will be

A

1.96 kJ

B

1960 kJ

C

122.5 kJ

D

0.1225 kJ

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11

2022 · Chemistry · Inorganic Chemistry · Periodic Table

WB JEE 2022

The correct pair of electron affinity order is

A

O > S, F > Cl

B

O < S, Cl > F

C

S > O, F > Cl

D

S < O, Cl > F

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12

2023 · Chemistry · Inorganic Chemistry · Periodic Table

WB JEE 2023

Suppose a gaseous mixture of He, Ne, Ar and Kr is treated with photons of the frequency appropriate to ionize Ar. What ion(s) will be present in the mixture?

A

Ar\(^+\)

B

Ar\(^+\) + Kr\(^+\)

C

Ar\(^+\) + He\(^+\) + Ne\(^+\)

D

He\(^+\) + Ar\(^+\) + Kr\(^+\)

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13

2023 · Chemistry · Inorganic Chemistry · Periodic Table

WB JEE 2023

4f\(^2\) electronic configuration is found in

A

Pr

B

Pr\(^{3+}\)

C

Nd\(^{3+}\)

D

Pm\(^{3+}\)

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