(A) Nitrogen
(B) Oxygen
(C) Carbon dioxide
(D) Hydrogen
Answer: (A) Nitrogen
Abundant gas found in atmosphere is Nitrogen.
Author: MCQsLoader
Fossil fuels are usually?
(A) Nitrogen
(B) Carbon dioxide
(C) oxygen
(D) Hydrocarbon
Answer: (D) Hydrocarbon
Fossil fuels are usually hydrocarbon.
Sodium metal can not be stored under:
(A) Alcohol
(B) Xylene
(C) Benzene
(D) Kerosene oil
Answer: (A) Alcohol
Sodium metal can not be stored under alcohol.
Orbital’s having same energy is called:
(A) Valence Orbital
(B) Degenerate orbital
(C) P-orbital
(D) None of these
Answer: (B) Degenerate orbital
Orbital’s having same energy is called degenerate orbital.
who discovered electron:
(A) J Kepler
(B) JJ Thomson
(C) John Dalton
(D) Democritus
Answer: (B) JJ Thomson
Electron was discovered by JJ Thomson.