(A) 40g
(B) 20g
(C) 1g
(D) 2g
Answer: (C) 1g
Category: Chemistry MCQs Class 9
Chemistry solved multiple choice questions (MCQs) for class 9 with answers.
Consider the following data:
(A) x ∝ y
(B) x = y
(C) x ∝ 1/y
(D) x = 1/y
Answer: (A) x ∝ y
In the formation of AlF3, Al atom loses _____ electrons.
(A) 1
(B) 2
(C) 3
(D) 4
Answer: (C) 3
Which of the following elements has greater shielding effect?
(A) Li
(B) Na
(C) K
(D) Rb
Answer: (D) Rb
M shell has _____ sub-shells.
(A) 1s, 2s
(B) 2s, 2p
(C) 3s, 3p, 3d
(D) 1s, 2s, 3s
Answer: (C) 3s, 3p, 3d