Home: Chemistry MCQs
Q. 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 ☑
Q. The elements in group 1A are known as
(A) alkanes
(B) alkenes
(C) alkali metals
(D) halogens
The answer is: (C) alkali metals ☑
Q. The elements in group 7A are known as
(A) alkanes
(B) alkenes
(C) alkali metals
(D) halogens
The answer is: (D) halogens ☑
Q. A periodic table is showing the element Sodium as below. What is atomic number and mass number of the element sodium?
(A) Atomic Number = 11 and Mass Number = 23
(B) Atomic Number = 23 and Mass Number = 11
(C) Atomic Number = 11 and Electronegativity = 23
(D) Atomic Number = 11 and Valency = 23
The answer is: (A) Atomic Number = 11 and Mass Number = 23 ☑
Q. The molecular formula of methanol
(A) CH2OH
(B) CH3OH
(C) CH2Cl3
(D) CH3Cl2
The answer is: (B) CH3OH ☑
Q. The molecular formula of glucose
(A) C6H11O5
(B) C6H12O5
(C) C6H11O6
(D) C6H12O6
The answer is: (D) C6H12O6 ☑