Home: Chemistry MCQs
Q. The atomic number of Hydrogen is
(A) 1
(B) 2
(C) 8
(D) 16
The answer is: (A) 1 ☑
Q. Electron in its ground state does not
(A) spin
(B) revolve
(C) reside in orbit
(D) radiate energy
The answer is: (D) radiate energy ☑
Q. The number of periods in modern periodic table is
(A) 5
(B) 6
(C) 7
(D) 8
The answer is: (C) 7 ☑
Q. Which of the following is a transition element?
(A) Cu
(B) Cl
(C) S
(D) B
The answer is: (A) Cu ☑
Q. Ink spreads in water because of
(A) Vapor pressure
(B) Diffusion
(C) Dipole movement
(D) Osmosis
The answer is: (B) Diffusion ☑