100+ Inorganic Chemistry MCQ Questions and Answers pdf - 2

Question: 6

Why gold is used for making jewels?

Gold is used for making jewels because it is not affected by atmosphere, water and chemicals.

It never loses its shining.

Question: 7

What is the action of oxygen on metals?

Metals combine with oxygen to give basic oxides.

Question: 8

What is malleability?

Substances which can be beaten into thin sheets are called malleable substances.

Metals are malleable. Example Gold, silver and iron.

Question: 9

Define ductility?

The property due to which metals can be drawn into thin wires is called ductility.

Due to this property of metals, they are used in making electric cables and filament of electric bulbs.

Question: 10

What are alloys?

An alloy is a homogenous mixture of a metal with other metals or non metals. Addition of certain metals or non metals improves the qualities of the metal. Such a mixture is called an alloy. The metal are mixed in the molten state in a fixed proportion to form an alloy.

Example : Bronze, Duraluminum, Stainless steel.