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Exam Details

JEE MAIN 2019 ONLINE 9TH JANUARY EVENING SLOT

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Questions 90
Duration 180 mins
Package IIT-JEE Main - Previous Year Papers

Paper pattern & analysis

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Showing all 90 questions in this paper.

Subject distribution

Chemistry
30 Qs
Physics
30 Qs
Mathematics
30 Qs

Topic distribution

Algebra
16 Qs
Mechanics
14 Qs
Physical Chemistry
10 Qs
Electricity
10 Qs
Inorganic Chemistry
10 Qs
Organic Chemistry
9 Qs
Calculus
8 Qs
Modern Physics
4 Qs
Coordinate Geometry
4 Qs
Trigonometry
2 Qs
Optics
2 Qs
Organic Chemistry
1 Qs

Subtopic distribution

Aldehydes Ketones And Carboxylic Acids
4 Qs
Heat And Thermodynamics
2 Qs
Current Electricity
2 Qs
Sequences And Series
2 Qs
3D Geometry
2 Qs
Basics Of Organic Chemistry
2 Qs
Units And Measurements
2 Qs
Simple Harmonic Motion
2 Qs
Magnetics
2 Qs
Electrostatics
2 Qs
Alternating Current
2 Qs
Coordination Compounds
2 Qs

Difficulty distribution

Medium 62 68.9%
Easy 27 30%
Hard 1 1.1%

Question type distribution

Multiple Choices 90 100%

Syllabus

Full Syllabus

Sample questions from this paper

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

1
2019 · Chemistry · Physical Chemistry · Solid State
JEE MAIN 2019 ONLINE 9TH JANUARY EVENING SLOT
At 100oC, copper (Cu) has FCC unit cell structure with cell edge length of x \(\mathop A\limits^o\). What is the approximate density of Cu (in g cm\(-\)3) at this temperature?
[Atomic Mass of Cu = 63.55 u]
A
\({{205} \over {{x^3}}}\)
B
\({{105} \over {{x^3}}}\)
C
\({{211} \over {{x^3}}}\)
D
\({{422} \over {{x^3}}}\)
2
2019 · Physics · Modern Physics · Communication Systems
JEE MAIN 2019 ONLINE 9TH JANUARY EVENING SLOT
In a communication system operating at wavelength 800 nm, only one percent of source frequency is available as signal bandwith. The number of channels accomodated for transmitting TV signals of band width 6 MHz are (Take velocity of light c = 3 \(\times\) 108m/s, h = 6.6 \(\times\) 10\(-\)34 J-s)
A
3.75 \(\times\) 106
B
3.86 \(\times\) 106
C
6.25 \(\times\) 105
D
4.87 \(\times\) 105
3
2019 · Mathematics · Algebra · Binomial Theorem
JEE MAIN 2019 ONLINE 9TH JANUARY EVENING SLOT
The coefficient of t4 in the expansion of \({\left( {{{1 - {t^6}} \over {1 - t}}} \right)^3}\) is :
A
14
B
15
C
10
D
12
4
2019 · Chemistry · Inorganic Chemistry · Isolation Of Elements
JEE MAIN 2019 ONLINE 9TH JANUARY EVENING SLOT
The correct statement regarding the given Ellingham diagram is :

JEE Main 2019 (Online) 9th January Evening Slot Chemistry - Isolation of Elements Question 100 English
A
At 1400oC, Al can be used for the extraction of Zn from ZnO
B
At 500oC, coke can be used for the extraction of Zn from ZnO
C
Coke cannot be used for the extraction of Cu from Cu2O.
D
At 800oC, Cu can be used for the extraction of Zn from ZnO.
5
2019 · Physics · Modern Physics · Atoms And Nuclei
JEE MAIN 2019 ONLINE 9TH JANUARY EVENING SLOT
At a given instant, say t = 0, two radioactive substance A and B have equal activities. the ratio \({{{R_B}} \over {{R_A}}}\) of their activities after time t itself decays with time t as e\(-\)3t. If the half-life of A is ln2, the half-life of B is :
A
4ln2
B
\({{\ln 2} \over 2}\)
C
\({{\ln 2} \over 4}\)
D
2ln2
6
2019 · Mathematics · Coordinate Geometry · Circle
JEE MAIN 2019 ONLINE 9TH JANUARY EVENING SLOT
If the circles

x2 + y2 \(-\) 16x \(-\) 20y + 164 = r2  

and  (x \(-\) 4)2 + (y \(-\) 7)2 = 36

intersect at two distinct points, then :
A
r > 11
B
0 < r < 1
C
r = 11
D
1 < r < 11