View the new MCQs of Chemistry for the upcoming 2021 examinations at Chemistry MCQs Class 9 NEW
Category: Chemistry MCQs Class 9
Chemistry solved multiple choice questions (MCQs) for class 9 with answers.
The natural abundance of O is _____.
(A) 0.037%
(B) 0.204%
(C) 70%
(D) 99.76%
Answer: (D) 99.76%
What is the unit of ionization energy?
(A) Nanometer
(B) Mole
(C) kJ/Mole
(D) kg/Mole
Answer: (C) kJ/Mole
Which of the following pairs of atoms forms a pure covalent bond?
(A) Sodium and Chlorine
(B) Hydrogen and Chlorine
(C) Hydrogen and Oxygen
(D) Chlorine and Chlorine
Answer: (A) Sodium and Chlorine
Sulphuric Acid was discovered by _____.
(A) Al Jahiz
(B) Berzelius
(C) Aristotle
(D) Jabar bin Hayian
Answer: (D) Jabar bin Hayian