(A) K, Cr
(B) Cu, Ca
(C) F, Cl
(D) N, O
Answer: (C) F, Cl
F, Cl Is a pair of element is chemically similar.
Category: Chemistry MCQs Class 9
Chemistry MCQs questions with answers of class 9 or 9th class. SSC Part-I chemistry multiple choice questions from past papers.
Law of multiple proportions is put forward by:
(A) Lious Proust
(B) John Dalton
(C) Benjamin Richter
(D) None of these
Answer: (B) John Dalton
Law of multiple proportions is put forward by John Dalton.
Solutions are:
(A) Opaque
(B) Colloids
(C) Transparent
(D) None of these
Answer: (C) Transparent
Solutions are transparent.
One Faraday is equals to ______ Coulombs.
(A) 96500
(B) 96600
(C) 96700
(D) 96800
Answer: (A) 96500
One Faraday is equals to 96500 Coulombs.
In 18 grams of water (H2O), number of molecules is:
(A) 6.02 x 10^23
(B) 6.02 x 10^24
(C) 6.02 x 10^30
(D) 6.02 x 10^34
Answer: (A) 6.02 x 10^23
In 18 grams of water (H2O), number of molecules is 6.02 x 10^23.