(A) Electron
(B) Proton
(C) Neutron
(D) Positron
The answer is (B) Proton
Oxidation is a chemical reaction involving the?
(A) Gain of Electrons
(B) Loss Electrons
(C) Gain of Protons
(D) Loss of Protons
The answer is (B) Loss Electrons
What is the chemical symbol for gold?
(A) Au
(B) Ag
(C) Fe
(D) Cu
The answer is (B) Ag
Isotopes are atoms of the same element with different numbers of
(A) Protons
(B) Electrons
(C) Neutrons
(D) Positron
The answer is (A) Protons
The most abundant constituent in Air is
(A) Oxygen
(B) Hydrogen
(C) Carbondioxide
(D) Nitrogen
The answer is (D) Nitrogen
__________ are biological catalysts.
(A) Enzymes
(B) Minerals
(C) Proteins
(D) Vitamins
The answer is (A) Enzymes
pH is an abbreviation for?
(A) Power of Hydrogen
(B) Possibility of Hydrogen
(C) Population of Hydrogen
(D) Position of Hydrogen
The answer is: (A) Power of Hydrogen
The average human body contains about _______ gram of Sodium Chloride.
(A) 190
(B) 210
(C) 230
(D) 250
The answer is: (D) 250
The substance which increases the rate of chemical reaction is
(A) Metal
(B) Catalyst
(C) Alloy
(D) Enzymes
The answer is: (B) Catalyst
The most abundant element in the universe is
(A) Hydrogen
(B) Oxygen
(C) Carbon dioxide
(D) Silicon
The answer is: (A) Hydrogen