HICH Quiz - General Science

Which of the following is used as a lubricant?

Diamond

Silica

Iron oxide

Graphite

The variety of coal in which the deposit contains recognizeble traces of the original plant material is?

Anthracite

Bitumen

Peat

Lignite

The hardest substance available on earth is ?

platinum

Diamond

Gold

Iron

Bromine is a

Highly inflammable gas

Highly inflammable vm

Red liquid

Blac k solid

which of the gas is not know as green house gas ?

Carbon dioxide

Methane

Nitrour oxide

Hydrogen

Quartz crystal normally used in quartz clocks etc.is chemically ?

Germanium oxide

Silicone dioxide

Sodium silicate

A mixture of germanium oxide and

Washing soda is tha common name for?

Sodium bicarbonate

Calcium carbonate

Sodium Carbonate

Calcium bicarbonate

The gas usually filled in the electric bulb is?

Hydrogen

Nitrogen

Oxygen

Carbon dioxide

Which of the following metals forms an amalgam with other metals?

Lead

Zinc

Tim

Mercury

Which of the following is used in pencils?

Graphite

Charcoal

Silicone

phosphorus

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