set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

The nucleus of a singly ionized carbon atom contains

a) 6 protons, 6 neutrons and 6 electrons

b) 5 protons and 6 neutrons

c) 6 protons and 6 neutrons

d) 12 protons, 6 neutrons and 6 electrons

Question : 2

What is the mass number of an element, the atom of which contains two protons, two neutrons and two electrons?

a) 4

b) 6

c) 2

d) 8

Question : 3

Which of the following is not a part of an atom?

a) Proton

b) Neutron

c) Electron

d) Photon

Question : 4

Constituents of atomic nucleus are

a) Electron and neutron

b) Proton and neutron

c) Electron and proton

d) Proton, neutron and electron

Question : 5

An a-particle consists of which of the following?

a) 2 protons and 4 neutrons

b) 1 proton and 1 electron

c) 2 protons and 2 neutrons

d) 1 proton and 1 neutron

Question : 6

Members of which of the following have similar chemical properties ?

a) Isobars

b) Allotropes

c) Isotope

d) Both isotopes and allotropes