Explore topic-wise MCQs in SRMJEEE .

This section includes 45 Mcqs, each offering curated multiple-choice questions to sharpen your SRMJEEE knowledge and support exam preparation. Choose a topic below to get started.

1.

 Protons (p+) and neutrons (n0) constitute the

A. nucleus
B. nucleon
C. orbital
D. diameter
Answer» C. orbital
2.

Major part of an atom is

A. electric field
B. space
C. nucleus
D. orbital
Answer» C. nucleus
3.

Neutrons (n0) are neutral and carry

A. positive charge
B. negative charge
C. no charge
D. high voltage
Answer» D. high voltage
4.

Atom of aluminum (Al) has number of neutrons (n0)

A. 13
B. 27
C. 14
D. 13
Answer» D. 13
5.

 Mass number is the

A. atomic number
B. nucleon number
C. proton number
D. neutron number
Answer» C. proton number
6.

Number of electrons (e-) are always equal to number of protons(p+) in a

A. neutral atom
B. positive ion
C. negative ion
D. isotope
Answer» B. positive ion
7.

Specific radioactive isotopes are used for

A. leakage check
B. check thyroid activity
C. treat some types of cancer
D. All of Above
Answer» E.
8.

Hydrogen has a number of isotopes

A. 2
B. 1
C. 3
D. 11
Answer» D. 11
9.

Most composition of sun is mainly

A. oxygen and hydrogen
B. hydrogen
C. hydrogen and helium
D. helium
Answer» D. helium
10.

Protons are deflected from anode which reveals their

A. positive charge
B. negative charge
C. neutral charge
D. all
Answer» B. negative charge
11.

1.67*10-27kg is weight of single atom of

A. oxygen
B. nitrogen
C. hydrogen
D. water
Answer» D. water
12.

Attractions of electrons towards anode shows

A. electrons are negatively charged
B. electrons carry very small mass
C. both A and B
D. electrons carry more mass than protons
Answer» D. electrons carry more mass than protons
13.

Charge to mass ratio was first calculated by

A. J.J.Thomas
B. Thomas Edison
C. J.K Thomas
D. A.Einstein
Answer» B. Thomas Edison
14.

Beam of electrons can be produced with help of

A. anode-ray tube
B. cathode-ray tube
C. inert-ray tube
D. bi-charged-ray tube
Answer» C. inert-ray tube
15.

Elements which are found on their own in nature as free elements are

A. gold and silver
B. coal and gold
C. nitrogen and gold
D. gold and mercury
Answer» D. gold and mercury
16.

Number of atoms in same element has same number of

A. protons
B. electrons
C. neutrons
D. All of Above
Answer» B. electrons
17.

Particular element posses same number of electrons hence have same

A. chemical properties
B. physical properties
C. density
D. All of Above
Answer» B. physical properties
18.

Number of protons and number of electrons are always equal in

A. neutral atom
B. molecules
C. ions
D. compounds
Answer» B. molecules
19.

By chemical means chemical elements cannot be broken down into

A. metals
B. non-metals
C. smaller substances
D. metalloids
Answer» D. metalloids
20.

 Every substance in our world is made up of

A. matter
B. electrons
C. protons
D. chemical elements
Answer» E.
21.

Pathway of electron is called

A. orbit
B. orbital
C. axis
D. electric path
Answer» C. axis
22.

Number of proton, neutron and electron in sulfide ion is respectively

A. 16,17 and 18
B. 17,16 and 18
C. 18,17 and 16
D. 18,16 and 17
Answer» B. 17,16 and 18
23.

Particles which revolve around nucleus are called

A. proton
B. electrons
C. neutron
D. All of Above
Answer» C. neutron
24.

When electrons are passed through electromagnetic field, electrons are deflected away from

A. positive plate
B. negative plate
C. neutral plate
D. oxidation plate
Answer» C. neutral plate
25.

Proton number is denoted by symbol

A. A
B. Z
C. P
D. N
Answer» C. P
26.

Elements which have same number of protons but different number of neutrons are called as

A. isotopes
B. isomers
C. allotropes
D. allomers
Answer» B. isomers
27.

Hydrogen atom has an approximate diameter of

A. 10-9m
B. 10-10m
C. 9-10m
D. 10-11m
Answer» B. 10-10m
28.

Sum of protons and neutrons in an atom gives off

A. nucleon number
B. mass number
C. atomic number
D. both A and B
Answer» E.
29.

By exposure of electrons beams on atoms and observing their behavior upon fall of beam can help to determine

A. charge
B. weight
C. length
D. all
Answer» B. weight
30.

An Electric field deflects beams of

A. protons
B. electrons
C. neutrons
D. both A and B
Answer» E.
31.

Chemical elements are represented by Greek or Latin

A. alphabets
B. symbols
C. gods
D. illusions
Answer» C. gods
32.

Number of times a p+ is heavier than an e- is

A. 18 times
B. 184 times
C. 200 times
D. 1840 times
Answer» E.
33.

Smallest particle of an element which can take part in any chemical change is know as a/an

A. nucleus
B. atom
C. proton
D. neutron
Answer» C. proton
34.

A covalent bond is also called as ____

A. Atomic bond
B. Metal bond
C. Molecular bond
D. Metal bond
Answer» D. Metal bond
35.

Electrons that orbit outermost shell of an atom are called?

A. Valence electrons
B. Electrons
C. Electron Coefficients
D. Neutrons
Answer» B. Electrons
36.

What is the time during which one half of a number of radioactive species decays or one half of their activity ceases?

A. Half Life
B. Super critical state
C. Semi life
D. Critical life
Answer» B. Super critical state
37.

The net neutrons produced per initial neutron accounting for all possible losses is called?

A. Bombardment
B. Half life
C. Multiplication factors
D. Covalent bond
Answer» D. Covalent bond
38.

To disrupt a nucleus and separate in into its component nucleons, energy must be supplied from outside and this energy is called?

A. Bonding energy
B. Kinetic energy
C. Binding energy
D. Nuclear energy
Answer» D. Nuclear energy
39.

 Number of protons in the nucleus is called ___________

A. Atomic number
B. Mass number
C. Electric charge
D. Periodic number
Answer» B. Mass number
40.

On which law is the nuclear energy explained?

A. Einstein’s law
B. Newton’s law
C. Rutherford law
D. Mendeleev law
Answer» B. Newton’s law
41.

The atom as a whole is electrically charged.

A. True
B. False
Answer» C.
42.

 Nucleus consists of two sub-particles known as?

A. Nucleotides
B. Nucleons
C. Neutrons
D. Nucleosides
Answer» C. Neutrons
43.

 What is the most attractive part of nuclear energy?

A. Supports countries development
B. Causes no pollution
C. Has high efficiency of energy production
D. Is available in abundance
Answer» C. Has high efficiency of energy production
44.

How much amount of nuclear energy burnt is equivalent to the energy produced by 3000 tonnes of coal?

A. 1kg
B. 5kg
C. 15kg
D. 20kg
Answer» B. 5kg
45.

Why has nuclear energy become an inevitable option for the development of the country?

A. Because less pollution caused by nuclear plant
B. High efficiency of nuclear energy
C. Due to acute shortage of other sources of energy
D. High cost of energy production of other sources
Answer» D. High cost of energy production of other sources