(A) O2
(B) CO2
(C) H2
(D) CH4
The answer is: (D) CH4
Category: Everyday Science
The speed of light in air is
(A) 2.8×106 m/s
(B) 2.8×108 m/s
(C) 3.0×106 m/s
(D) 3.0×108 m/s
The answer is: (D) 3.0×108 m/s
The unit of surface tension is:
(A) Newton per meter
(B) Newton per meter square
(C) 760 mm of Hg
(D) Newton square per meter
The answer is: (A) Newton per meter
Most of the cholesterol in human’s bloodstream is produced by the
(A) kidney
(B) liver
(C) lung
(D) large intestine
The answer is: (B) liver
The attractive force that binds protons and neutrons in nucleus of an atom is known as
(A) Coulomb force
(B) electromagnetic force
(C) nuclear force
(D) electromotive force
The answer is: (C) nuclear force
Which Chromatography technique is used for analyzing the volatile substances?
(A) Paper Chromatography
(B) Liquid Chromatography
(C) Gas Chromatography
(D) Thin-layer Chromatography
Technique used to separate a mixture in order to be analyzed and studied is known as
(A) nitrification
(B) chromatography
(C) catalysis
(D) fermentation
The answer is: (B) chromatography
An element is identified by the number of ________ in its ________.
(A) protons, nucleus
(B) neutrons, nucleus
(C) electrons, atom
(D) positrons, atom
The answer is: (A) protons, nucleus
Amino acids are the building blocks of
(A) Fats
(B) Vitamins
(C) Proteins
(D) Lipids
The answer is: (C) Proteins
The foot-pound is the unit of
(A) time
(B) length
(C) weight
(D) energy
The answer is: (D) energy