Which of the following is a biodegradable material?

Name the property by virtue of which a metal can be hammered into thin sheets.

Heating elements of devices like electric heater and geyser are made of alloys because alloys have __________.

Which of the following options is an ore of uranium?

Which of the following materials is not sonorous?

What is the process of purifying impure metals called?

Where is phosphorus used?

Which metal is used to make the filament of an electric bulb?

How many non-metals exist on Earth?

Aluminium foil is used to make medicine wrappers because it is

The most conducting metal is

The unwanted impurities like sand, rocky material, limestone, mica etc. present in an ore are called

Which of the following metals is used in fireworks?

Food cans are coated with tin and not zinc because?

Which of the following non-metals is used in the hydrogenation of vegetable oils to make vegetable ghee?

The metal present in photo films is

Which of the following metals has low melting and boiling points?

Non–metals are generally non-lustrous, except for

Which of the following metals is used in a car battery?

Which of the following is used as an electrode in a dry cell?