JEE Main Mock Test 2 - Online MCQ Exam

Manish takes 26 hours to complete the whole work. If he works 3$\frac{1}{4}$ hours daily, in how many days he will finish 4 the work?

1 Mark(s)

Your Answer:

A) 9 days A) 9 days
B) 6 days 5 B) 6 days 5
C) 7 days C) 7 days
D) 8 days D) 8 days

If 250 babies are born every minute across the world, then the number of babies born in one hour is:

1 Mark(s)

Your Answer:

A) 15000 A) 15000
B) 150000 B) 150000
C) 1500 C) 1500
D) 150 D) 150

A trader purchased two colour televisions for a total of Rs. 35000. He sold one colour television at 30% profit and the other 40% profit. Find the difference in the cost prices of the two televisions if he made an overall profit of 32%?

1 Mark(s)

Your Answer:

Rs. 21000 Rs. 21000
Rs. 17500 Rs. 17500
Rs. 19000 Rs. 19000
Rs. 24500 Rs. 24500

One Water molecule can form maximum ______hydrogen bonds.

1 Mark(s)

Your Answer:

2 2
3 3
4 4
None None

We can express 0.00380 in scientific notation as:

1 Mark(s)

Your Answer:

3.80 × 102 3.80 × 102
3.80 × 104 3.80 × 104
3.80 × 103 3.80 × 103
3.80 × 10−3 3.80 × 10−3

Which is strongest acid?

1 Mark(s)

Your Answer:

Ethanol Ethanol
Methanol Methanol
Water Water
Phenol Phenol

The value of induced Electromotive force (EMF) is directly proportional to:

1 Mark(s)

Your Answer:

current through coil current through coil
voltage applied voltage applied
no. of field lines no. of field lines
resistivity resistivity

Which one is the right value for R ?

1 Mark(s)

Your Answer:

0.0821 atm dm3k-1mol- 0.0821 atm dm3k-1mol-
0.0821 atm m3k-1mol-1 0.0821 atm m3k-1mol-1
2 cal k-1 mol-1 2 cal k-1 mol-1
8.314 Nm2k-1mol-1 8.314 Nm2k-1mol-1

If the length, breadth and the height of a cuboid are in the ratio 6: 5: 4 and if the total surface area is 33300 cm², then length breadth and height in cms, are respectively?

1 Mark(s)

Your Answer:

90, 85, 60 90, 85, 60
85, 75, 60 85, 75, 60
90, 75, 70 90, 75, 70
90, 75,60 90, 75,60

If the selling price of a fan at 5% profit is ₹ 630, then its cost price is

1 Mark(s)

Your Answer:

A) ₹ 600 A) ₹ 600
B) ₹ 650 B) ₹ 650
C) ₹ 680 C) ₹ 680
D) ₹ 700 D) ₹ 700

1 Henry is equal to:

1 Mark(s)

Your Answer:

$1 V s / A$ $1 V s / A$
$1 V A / s$ $1 V A / s$
$1 J / A$ $1 J / A$
$1 T m^2$ $1 T m^2$

Such use of the computer through which we can write a letter, article, book, or prepare a report is called:

1 Mark(s)

Your Answer:

operating system operating system
word processing word processing
data management data management
managing system managing system

Acetone reacts with HCN to form a cyanohydrin. It is an example of________________?

1 Mark(s)

Your Answer:

electronphilic addition electronphilic addition
electrophilic substitution electrophilic substitution
nucleophilic addition nucleophilic addition
nucleophilic substitution nucleophilic substitution

The matter is made up of:

1 Mark(s)

Your Answer:

atoms atoms
molecules molecules
ions ions
cations cations

4moles of Carbon dioxide(CO2) have _____molecules.

1 Mark(s)

Your Answer:

6.02 x 1023 6.02 x 1023
12.04 x 1025 12.04 x 1025
18.06 x 1023 18.06 x 1023
24.08 x 1023 24.08 x 1023

Which set of solutes will form a buffer when dissolved in water to make 1 litter of solution ?

1 Mark(s)

Your Answer:

0.0002M HCI 0.0002M HCI
0.2 mole of NaCI with 0.2 mole of HNO3 0.2 mole of NaCI with 0.2 mole of HNO3
0.4 mole of CH3COOH with 0.4 mole of NaOH
0.4 mole of NH3 with 0.2 mole of HCI 0.4 mole of NH3 with 0.2 mole of HCI

A SONAR sends a signal and receives an echo after 2s. If the speed of sound in water is 1500 m/s, the depth is:

1 Mark(s)

Your Answer:

3000 m 3000 m
1500 m 1500 m
750 m 750 m
4500 m 4500 m

Biodegradable pollutant is:_____________?

1 Mark(s)

Your Answer:

DDT DDT
mercury salt mercury salt
Domestic waste Domestic waste
Aluminum foil Aluminum foil

The unit of radioactivity curie is equal to________________?

1 Mark(s)

Your Answer:

3.74 x 109 disintegration per sec 3.74 x 109 disintegration per sec
3.70 x 1010 disintegration per sec 3.70 x 1010 disintegration per sec
3.55 x 1010 disintegration per sec 3.55 x 1010 disintegration per sec
3.60 x 1010 disintegration per sec 3.60 x 1010 disintegration per sec

Which of the following list of numbers forms an AP?

1 Mark(s)

Your Answer:

A) √3, √6, √9, √12, ……… A) √3, √6, √9, √12, ………
B) 1 2 , 3 2 , 5 2 , 7 2 , ……… B) 1 2 , 3 2 , 5 2 , 7 2 , ………
C) 1 2 , 5 2 , 7 2 , 73, ………. C) 1 2 , 5 2 , 7 2 , 73, ……….
D) a, a 2 , a 3 , a 4 , ………. D) a, a 2 , a 3 , a 4 , ……….

The equations of motion for bodies moving with uniform acceleration are of:

1 Mark(s)

Your Answer:

2 types 2 types
4 types 4 types
3 types 3 types
5 types 5 types

What is $\sqrt{729}$?

1 Mark(s)

Your Answer:

25 25
27 27
29 29
31 31

A card is drawn from a pack of 52 cards. The probability of getting a queen of club or a king of heart is___________?

1 Mark(s)

Your Answer:

1/13 1/13
2/13 2/13
1/26 1/26
1/52 1/52

Consider a drop of rain water having mass 1g falling from a height of 1km. It hits the ground with a speed of 50 m/s. The work done by the resistive force of air is ($g=10$):

1 Mark(s)

Your Answer:

$-10 J$ $-10 J$
$-8.75 J$ $-8.75 J$
$8.75 J$ $8.75 J$
$-1.25 J$ $-1.25 J$

The speed of the fluid is maximum in the venturi meter at_______________?

1 Mark(s)

Your Answer:

Convergent duct Convergent duct
Divergent duct Divergent duct
Throat Throat
None of these None of these

If a diffraction grating is placed in the path of a light beam it reveals______________?

1 Mark(s)

Your Answer:

Wave property Wave property
Particle property Particle property
Energy particle Energy particle
Electromagnetic wave property Electromagnetic wave property

Sound waves require a ______ for propagation.

1 Mark(s)

Your Answer:

Vacuum Vacuum
Material medium Material medium
Mirror Mirror
Magnet Magnet

How does iodine react?

1 Mark(s)

Your Answer:

explosively explosively
slowly in dark but rapidly in strong sunlight
requires high temperature or strong sun light
essentially unreactive essentially unreactive

Assertion (A) An equilateral triangle has three lines of symmetry. Reason (R) The number of lines of symmetry in a regular polygon with side (n) is equal to n.

1 Mark(s)

Your Answer:

A) Both A and R are true and R is the correct explanation of A.
B) Both A and R are true but R is not the correct explanation of A. .
C) A is true but R is false. C) A is true but R is false.
D) A is false but R is true. D) A is false but R is true.

What is the chemical name of Marsh gas?

1 Mark(s)

Your Answer:

Deuterium Oxide (D 2 O) Deuterium Oxide (D 2 O)
Sucrose (C 12 H 22 O 11 ) Sucrose (C 12 H 22 O 11 )
Methane (CH₄) Methane (CH₄)
Nitrous Oxide (N 2 O) Answer Nitrous Oxide (N 2 O) Answer

What happens when a solution becomes acidic?

1 Mark(s)

Your Answer:

[H+] increases [H+] increases
[H+] decreases [H+] decreases
[OH-] increases [OH-] increases
[OH-] decreases [OH-] decreases

The complex ion which has no d-electrons in the central metal atom is

1 Mark(s)

Your Answer:

A) [MnO 4 ] – A) [MnO 4 ] –
B) [Co(NH 3 ) 6 ] 3- B) [Co(NH 3 ) 6 ] 3-
C) [Fe(CN) 6 ] 3- C) [Fe(CN) 6 ] 3-
D) [Cr(H 2 O) 6 ] 3+ D) [Cr(H 2 O) 6 ] 3+

Which one is the dimensionally correct equation ?

1 Mark(s)

Your Answer:

f=vt f=vt
S=Vit+1/2at2 S=Vit+1/2at2
V=St V=St
V=f/t V=f/t

Electron affinity is highest for:

1 Mark(s)

Your Answer:

Fluorine Fluorine
Oxygen Oxygen
Chlorine Chlorine
Bromine Bromine

Rate constant in case of first order reaction is

1 Mark(s)

Your Answer:

A) inversely proportional to the concentration units
B) independent of concentration units B) independent of concentration units
C) directly proportional to concentration units
D) inversely proportional to the square of concentration units

What are the fractions with the same denominator called?

1 Mark(s)

Your Answer:

A) Unit fractions A) Unit fractions
B) Unlike fractions B) Unlike fractions
C) Like fractions C) Like fractions
D) Improper fractions D) Improper fractions

Two blocks of mass 4kg and 2kg are placed side by side on a smooth surface. A force of 12N acts on the 4kg block. The contact force between them is:

1 Mark(s)

Your Answer:

$4 N$ $4 N$
$8 N$ $8 N$
$12 N$ $12 N$
$6 N$ $6 N$

Chord AB subtend an angle of 150° at the center of a circle of radius 7 cm. The area of the minor segment AB is nearest to

1 Mark(s)

Your Answer:

A) 52 cm 2 A) 52 cm 2
B) 53 cm 2 B) 53 cm 2
C) 50 cm 2 C) 50 cm 2
D) 51 cm 2 D) 51 cm 2

Evaluating Your Answers

JEE Main Mock Test 2 : Question 1 of 38