Home: Chemistry MCQs
Q. An electrolyte is a substance that produces _____ solution when dissolved in water.
(A) conducting
(B) nonconducting
(C) poorly conducting
(D) B and C
The answer is: (A) conducting ☑
Q. A _____ consists of the elements in any one horizontal row of the periodic table.
(A) block
(B) base
(C) group
(D) period
The answer is: (D) period ☑
Q. A _____ consists of the elements in any one column of the periodic table.
(A) block
(B) base
(C) group
(D) period
The answer is: (C) group ☑
Q. One atomic mass unit (amu) is a mass unit equal to exactly one-twelth the mass of a _____ atom.
(A) carbon-8
(B) carbon-12
(C) carbon-16
(D) carbon-20
The answer is: (B) carbon-12 ☑
Q. Vitamin ________ is also called ascorbic acid.
(A) D
(B) A
(C) E
(D) C
The answer is: (D) C ☑