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Exam Details

JEE MAIN 2020 ONLINE 8TH JANUARY MORNING SLOT

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Questions 75
Duration 180 mins
Package IIT-JEE Main - Previous Year Papers

Paper pattern & analysis

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Showing all 75 questions in this paper.

Subject distribution

Chemistry
25 Qs
Physics
25 Qs
Mathematics
25 Qs

Topic distribution

Algebra
13 Qs
Mechanics
12 Qs
Physical Chemistry
10 Qs
Calculus
9 Qs
Organic Chemistry
9 Qs
Electricity
7 Qs
Inorganic Chemistry
6 Qs
Coordinate Geometry
3 Qs
Optics
3 Qs
Modern Physics
3 Qs

Subtopic distribution

Application Of Derivatives
3 Qs
Geometrical Optics
3 Qs
Current Electricity
2 Qs
Sequences And Series
2 Qs
Alcohols Phenols And Ethers
2 Qs
Center Of Mass
2 Qs
Permutations And Combinations
2 Qs
Matrices And Determinants
2 Qs
Properties Of Matter
2 Qs
Heat And Thermodynamics
2 Qs
Electrostatics
2 Qs
Periodic Table And Periodicity
2 Qs

Difficulty distribution

Medium 49 65.3%
Easy 24 32%
Hard 2 2.7%

Question type distribution

Multiple Choices 60 80%
Numerical Answer Type (NAT) 15 20%

Syllabus

Full Syllabus

Sample questions from this paper

Questions are selected across the paper subjects wherever the paper contains that variety.

1
2020 · Chemistry · Physical Chemistry · Surface Chemistry
JEE MAIN 2020 ONLINE 8TH JANUARY MORNING SLOT
As per Hardy-Schulze formulation, the flocculation values of the following for ferric hydroxide sol are in the order :
A
AICl3 > K3[Fe(CN)6] > K2CrO4 > KBr = KNO3
B
K3[Fe(CN)6] < K2CrO4 < KBr = KNO3 = AlCl3
C
K3[Fe(CN)6] < K2CrO4 < AlCl3 < KBr < KNO3
D
K3[Fe(CN)6] > AlCl3 > K2CrO4 > KBr > KNO3
2
2020 · Physics · Electricity · Current Electricity
JEE MAIN 2020 ONLINE 8TH JANUARY MORNING SLOT
The length of a potentiometer wire is 1200 cm and it carries a current of 60 mA. For a cell of emf 5V and internal resistance of 20\(\Omega\), the null point on it is found to be a 1000 cm. The resistance of whole wire is :
A
80\(\Omega\)
B
60\(\Omega\)
C
120\(\Omega\)
D
100\(\Omega\)
3
2020 · Mathematics · Coordinate Geometry · Ellipse
JEE MAIN 2020 ONLINE 8TH JANUARY MORNING SLOT
Let the line y = mx and the ellipse 2x2 + y2 = 1 intersect at a ponit P in the first quadrant. If the normal to this ellipse at P meets the co-ordinate axes at \(\left( { - {1 \over {3\sqrt 2 }},0} \right)\) and (0, \(\beta\)), then \(\beta\) is equal to :
A
\({{\sqrt 2 } \over 3}\)
B
\({2 \over 3}\)
C
\({{2\sqrt 2 } \over 3}\)
D
\({2 \over {\sqrt 3 }}\)
4
2020 · Chemistry · Inorganic Chemistry · S Block Elements
JEE MAIN 2020 ONLINE 8TH JANUARY MORNING SLOT
When gypsum is heated to 393 K, it forms :
A
CaSO4 . 0.5H2O
B
CaSO4 . 5H2O
C
Dead burnt plaster
D
Anhydrous CaSO4
5
2020 · Physics · Mechanics · Units And Measurements
JEE MAIN 2020 ONLINE 8TH JANUARY MORNING SLOT
The dimension of stopping potential V0 in photoelectric effect in units of Planck's constant 'h', speed of light 'c' and Gravitational constant 'G' and ampere A is :
A
h1/3 G2/3 c1/3 A–1
B
h0 c5 G-1 A-1
C
h2/3 c5/3 G1/3 A–1
D
h2 G3/2 c1/3 A–1
6
2020 · Mathematics · Algebra · Sequences And Series
JEE MAIN 2020 ONLINE 8TH JANUARY MORNING SLOT
The sum \(\sum\limits_{k = 1}^{20} {\left( {1 + 2 + 3 + ... + k} \right)}\) is :
Enter a numerical response