Top 100+ Basic Chemistry Questions and Answers Pdf - 2

Question: 6

Of the following metals, which one pollutes the air of a big city?

(A) Chromium

(B) Copper

(C) Cadmium

(D) Lead

Question: 7

When the initial concentration of the reactant increases, the rate of formation of the product

(A) Increases

(B) Decreases

(C) Remains same

(D) None of these

Question: 8

In surgery, metal pins are used for joining together broken bones. These metal pins remain uncorroded in the body. What is the material of these pins?

(A) Aluminium

(B) Iron

(C) Copper

(D) Titanium

Question: 9

The catalyst used in the preparation of sulphuric acid by contact process is

(A) Sodium hydride

(B) Zinc

(C) Nickel

(D) Vanadium (v) oxide

Question: 10

Formalin is an aqueous solution of

(A) Methyl acetate

(B) Propanaone

(C) Methanol

(D) Ethanol