JEE Main Mock Test 11 - Online MCQ Exam

A committee has 5 men and 6 women. What are the number of ways of selecting a group of eight persons?

1 Mark(s)

Your Answer:

165 165
185 185
205 205
225 225

A tuning fork A produces 4 beats/sec with fork B of freq 256 Hz. When A is filed, beats increase. Frequency of A was:

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Your Answer:

260 Hz 260 Hz
252 Hz 252 Hz
256 Hz 256 Hz
264 Hz 264 Hz

Carbohydrates are polyhydroxy compounds of___________________?

1 Mark(s)

Your Answer:

Glucose Glucose
Glyceraldehydes Glyceraldehydes
Oligosaccharides Oligosaccharides
Aldehydes and ketones Aldehydes and ketones

Assertion (A): The base of the dam is kept narrower than the top to keep the dam strong to hold a huge amount of water. Reason (R): The water stored in the dam exerts pressure horizontally on the side walls of the dam and vertically on the floor due to the height of the water level. The pressure that acts horizontally is very large near its bottom. Codes:

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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. (A) is false, but (R) is true. Pressure, Winds, Storms, and Cyclones Class 8 Fill in the blanks

The average of first five multiples of 3 is____________?

1 Mark(s)

Your Answer:

3 3
9 9
12 12
15 15

Alloys are homogeneous mixtures of a metal with a metal or non-metal. Which among the following alloys contain non-metal as one of its constituents?

1 Mark(s)

Your Answer:

A) Brass A) Brass
B) Bronze B) Bronze
C) Amalgam C) Amalgam
D) Steel D) Steel

Aluminium salt commonly used to stop bleeding is:?

1 Mark(s)

Your Answer:

Potash alum Potash alum
Aluminium chloride Aluminium chloride
Aluminium nitrate Aluminium nitrate
Aluminium Sulphate Answer Aluminium Sulphate Answer

The reciprocal of a proper fraction is

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Your Answer:

A) 1 A) 1
B) an improper fraction B) an improper fraction
C) a unit fraction C) a unit fraction
D) not an improper fraction D) not an improper fraction

Time period of a simple pendulum depends upon

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Your Answer:

A) Weight of bob A) Weight of bob
B) Length of pendulum B) Length of pendulum
C) Both C) Both
D) None of above D) None of above

Second order half-life:

1 Mark(s)

Your Answer:

$\frac{0.693}{k}$ $\frac{0.693}{k}$
$\frac{1}{k[A]_0}$ $\frac{1}{k[A]_0}$
$\frac{[A]_0}{k}$ $\frac{[A]_0}{k}$
$\frac{k}{[A]_0}$ $\frac{k}{[A]_0}$

In one second, a human eardrum can oscillate back and forth up to:

1 Mark(s)

Your Answer:

30,000 times 30,000 times
10,000 times 10,000 times
25,000 times 25,000 times
20,000 times 20,000 times

Chapter 15 Polymers. Chemistry MCQs for Class 12 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 12 Chemistry Polymers MCQs Pdf with Answers to know their preparation level. Polymers Class 12 Chemistry MCQs Pdf 1. The monomer of polystyrene is

1 Mark(s)

Your Answer:

A) C 2 H —CH=CH 2 A) C 2 H —CH=CH 2
B) CH 2 =CHCl B) CH 2 =CHCl
C) C 6 H 5 CH=CH 2 C) C 6 H 5 CH=CH 2
D) CH 2 =CH—CHO Answer/Explanation D) CH 2 =CH—CHO Answer/Explanation

Loss of water is called:

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Your Answer:

hydrogenation hydrogenation
dehydration dehydration
halogenation halogenation
Dehydrohalogenation Dehydrohalogenation

The values for digital signals are:

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Your Answer:

1 and 2 1 and 2
3 and 4 3 and 4
5 and 6 5 and 6
0 and 1 0 and 1

The difference between a discount of 40% on Rs. 500 and two successive discount of 36% and 4% on the same amount is:________?

1 Mark(s)

Your Answer:

0 0
Rs. 2 Rs. 2
Rs. 1.93 Rs. 1.93
Rs. 7.20 Rs. 7.20

To add or subtract a positive number from both sides of any inequality without any change in the inequality sign is called:

1 Mark(s)

Your Answer:

distributive property of inequality distributive property of inequality
multiplicative property of inequality multiplicative property of inequality
additive property of inequality additive property of inequality
transitive property of inequality transitive property of inequality

EM waves transport:

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Your Answer:

Energy only Energy only
Momentum only Momentum only
Both Energy and Momentum Both Energy and Momentum
Matter Matter

Non-stoichiometric compounds of transition elements are called___________________?

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Your Answer:

hydrates hydrates
hydrides hydrides
binary compounds binary compounds
interstitial compounds interstitial compounds

Which of the following is a protein coded by DNA?

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Your Answer:

amylase amylase
insulin insulin
pepsin pepsin
lipase lipase

Saponification number is:

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Your Answer:

g KOH/kg fat g KOH/kg fat
g NaOH/g fat g NaOH/g fat
mg KOH/g fat mg KOH/g fat
mol KOH/g fat mol KOH/g fat

The molecular formula for cholesterol is C27 H46 O. What are the degrees of unsaturation for this compound?

1 Mark(s)

Your Answer:

5 5
6 6
7 7
8 8

A rod of length $L$ and area $A$ is heated from $T_1$ to $T_2$. It is prevented from expanding. Young's modulus $Y$. The energy stored per unit volume is:

1 Mark(s)

Your Answer:

$\frac{1}{2} Y \alpha^2 (\Delta T)^2$ $\frac{1}{2} Y \alpha^2 (\Delta T)^2$
$Y \alpha \Delta T$ $Y \alpha \Delta T$
$\frac{1}{2} Y \alpha \Delta T$ $\frac{1}{2} Y \alpha \Delta T$
$Y \alpha^2 (\Delta T)^2$ $Y \alpha^2 (\Delta T)^2$

The equation $y = A \sin(\omega t)$ represents:

1 Mark(s)

Your Answer:

SHM SHM
Linear motion Linear motion
Projectile motion Projectile motion
Circular motion Circular motion

Two sides of ∆ are 4 cm and 2 cm. Third side must be smaller than :

1 Mark(s)

Your Answer:

A) 4 cm A) 4 cm
B) 2 cm B) 2 cm
C) 6 cm C) 6 cm
D) 1 cm D) 1 cm

Electronegativity is highest for:

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Your Answer:

Oxygen Oxygen
Nitrogen Nitrogen
Fluorine Fluorine
Chlorine Chlorine

The interaction between highly electron-deficient hydrogen and highly electronegative atom is called:

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Your Answer:

Covalent bond Covalent bond
ionic bond ionic bond
dipole-dipole interaction dipole-dipole interaction
hydrogen bond hydrogen bond

F zero lines of the Vernier scale are on the right side of the zero of the main scale, then zero error will be:

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Your Answer:

positive positive
negative negative
zero zero
one one

Carbohydrates which form 2 to 9 molecules of simple sugars upon hydrolysis are called:

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Your Answer:

monosaccharides monosaccharides
oligosaccharides oligosaccharides
polysaccharides polysaccharides
starch starch

The location of transition elements is in between__________________?

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Your Answer:

lanthanides & actinides lanthanides & actinides
s and p block elements s and p block elements
chalcogens and halogens chalcogens and halogens
d and f block elements d and f block elements

The medium which sends information from source to receiver is called:

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Your Answer:

transmission channel transmission channel
transmitter transmitter
receiver receiver
optic fiber optic fiber

A negative charge:

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Your Answer:

repels neutral charge repels neutral charge
attracts neutral charge attracts neutral charge
repels negative charge repels negative charge
repel positive charge repel positive charge

Find the minor of the element of second row and third column in the following determinant $\left[\begin{array}{ccc} 2 & -3 & 5 \\ 6 & 0 & 4 \\ 1 & 5 & -7 \end{array}\right]$

1 Mark(s)

Your Answer:

A) 13 A) 13
B) 4 B) 4
C) 5 C) 5
D) 0 D) 0

A and B go cycling in the same direction with speeds of 6 km/hr and 12 km/hr. A car from behind passes them in 9 and 10 seconds respectively. What is the speed of the car?

1 Mark(s)

Your Answer:

22 km/hr 22 km/hr
33 km/hr 33 km/hr
66 km/hr 66 km/hr
44 km/hr 44 km/hr

In the Thomson’s model of atom, which of the following statement? is incorrect?

1 Mark(s)

Your Answer:

A) The mass of the atom is assumed to be uniformly distributed over the atom.
B) The electrons are uniformly distributed in the positively charged sphere.
C) The electrons attract each other to stabilise the atom.
D) The positive charge is assumed to be uniformly distributed over the atom.

Which of the following is used in detergents to remove food stains on clothes?

1 Mark(s)

Your Answer:

protease protease
amylase amylase
diastase diastase
lactase lactase

Two equal sides of an isosceles triangle are 13 cm each and its perimeter is 36 cm. Find the area of the triangle.

1 Mark(s)

Your Answer:

A) 20 cm 2 A) 20 cm 2
B) 30 cm 2 B) 30 cm 2
C) 40 cm 2 C) 40 cm 2
D) 60 cm 2 D) 60 cm 2

A floating object displaces a fluid having a weight equal to the weight of the object as per the:

1 Mark(s)

Your Answer:

principle of floatation principle of floatation
Einstein principle Einstein principle
Pascal's principle Pascal's principle
Newton's principle Newton's principle

The following alcohol does not undergo oxidation is _____________?

1 Mark(s)

Your Answer:

1° alcohol 1° alcohol
2° alcohol 2° alcohol
3° alcohol 3° alcohol
0° alcohol 0° alcohol

Which of the following is a macro nutrient ?

1 Mark(s)

Your Answer:

boron boron
iron iron
copper copper
carbon carbon

Which element has electronic configuration $[\ce{Ar}]3d^{10}4s^1$?

1 Mark(s)

Your Answer:

Copper Copper
Chromium Chromium
Potassium Potassium
Calcium Calcium

The device that disconnects the supply automatically if current exceeds the normal value is known as:

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Your Answer:

circuit breaker circuit breaker
fuse fuse
cable cable
capacitor capacitor

A solution that contains the maximum amount of solute that can be dissolved at a given temperature is called:

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Your Answer:

A) Unsaturated solution A) Unsaturated solution
B) Saturated solution B) Saturated solution
C) Supersaturated solution C) Supersaturated solution
D) Dilute solution D) Dilute solution

Light enters from air into diamond ($n=2.42$). The speed of light in diamond is:

1 Mark(s)

Your Answer:

$1.24 \times 10^8 m/s$ $1.24 \times 10^8 m/s$
$3 \times 10^8 m/s$ $3 \times 10^8 m/s$
$0.8 \times 10^8 m/s$ $0.8 \times 10^8 m/s$
$2.42 \times 10^8 m/s$ $2.42 \times 10^8 m/s$

The activity of an enzyme becomes ineffective

1 Mark(s)

Your Answer:

A) at low temperature A) at low temperature
B) at atmospheric pressure B) at atmospheric pressure
C) at high temperature C) at high temperature
D) in aqueous medium D) in aqueous medium

First order half-life:

1 Mark(s)

Your Answer:

$\frac{0.693}{k}$ $\frac{0.693}{k}$
$\frac{1}{2k[A]_0}$ $\frac{1}{2k[A]_0}$
$\frac{[A]_0}{2k}$ $\frac{[A]_0}{2k}$
$\frac{k}{0.693}$ $\frac{k}{0.693}$

In a cyclic process, the change in internal energy is:

1 Mark(s)

Your Answer:

Zero Zero
Positive Positive
Negative Negative
Infinite Infinite

The product of two odd numbers is

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Your Answer:

A) even A) even
B) odd B) odd
C) sometimes even and sometimes odd C) sometimes even and sometimes odd
D) None of the above D) None of the above

80% of 700 = __________?

1 Mark(s)

Your Answer:

550 550
560 560
565 565
none none

The Highest Common Factor (HCF) of 140, 308 and 490 is:

1 Mark(s)

Your Answer:

15 15
14 14
18 18
11 11

Evaluating Your Answers

JEE Main Mock Test 11 : Question 1 of 49