Chemistry Gk Questions and Answers 2020-2021 - 1

Question: 1

Which of the following is a/an non-ferrous metal?

(A) Aluminium

(B) Cobalt

(C) Iron

(D) Nickel

Ans: A


Question: 2

The trivalent anion is

(A) Sulphide ion

(B) Phosphate ion

(C) Sulphate ion

(D) Chloride ion

Ans: B

Phosphate ion

Question: 3

Most soluble in water is

(A) Common salt

(B) Sulphur

(C) Sugar

(D) Camphor

Ans: C


Question: 4

Stainless steel is an alloy of:

(A) Iron, chromium and nickel

(B) Iron, carbon and nickel

(C) Iron, chromium and zinc

(D) Iron and manganese

Ans: A

Iron, chromium and nickel

Question: 5

Which one is good conductor of electricity?

(A) Violet phosphorous

(B) Scarlet phosphorous

(C) Red phosphorous

(D) Black phosphorous

Ans: D

Black phosphorous

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