Category: Chemistry MCQs FPSC NTS PPSC Past Papers Test Questions

(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

(A) CH₂OH
(B) CH₃OH
(C) CH₂Cl₃
(D) CH₃Cl₂

The answer is: (B) CH₃OH

(A) C₆H₁₁O₅
(B) C₆H₁₂O₅
(C) C₆H₁₁O₆
(D) C₆H₁₂O₆

The answer is: (D) C₆H₁₂O₆

(A) Reduction
(B) Oxidation
(C) Both (A) & (B)
(D) None of these

The answer is: (B) Oxidation
The brown color of rust is because of oxidation process.

(A) Proteins
(B) Amino acids
(C) A & B
(D) None of these

The answer is: (B) Amino acids
Amino acids are the monomers that make up proteins.

(A) B
(B) Be
(C) Al
(D) Mg

The answer is: (A) B

(A) Air
(B) Sun
(C) Rocks
(D) Living organisms

The answer is: (D) Living organisms
Organic compounds are originated from Living organisms.

(A) 3
(B) 5
(C) 7
(D) 14

The answer is: (C) 7
Neutral solution has a pH value of 7.

(A) magnet
(B) molecule
(C) plasma
(D) current

The answer is: (C) plasma
When gas is ionized, plasma is formed.

(A) Au
(B) Ag
(C) Fe
(D) Sg

The answer is: (A) Au
The symbol of gold is Au.