Explore topic-wise MCQs in General Knowledge.

Amalgams are

Bromine is a

The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is

The chemical (ethyl mercaptan) added to the otherwise odourless LPG cooking gas for imparting a detectable smell to the gas is a compound of

The element common to all acids is

Tetraethyl lead is used as

The hardest substance available on earth is

Which of the following is used as a lubricant?

The property of a substance to absorb moisture from the air on exposure is called

In which of the following activities silicon carbide is used?

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

The gas usually filled in the electric bulb is

Quartz crystals normally used in quartz clocks etc. is chemically

What is the unit for measuring the amplitude of a sound?

Decibel is the unit for

Which type of fire extinguisher is used for petroleum fire?

Which of the following is commonly called a 'polyamide'?

Which of the following is used as a moderator in nuclear reactor?

'No two electrons in an atom can have the same set of four quantum numbers' is

Fathom is the unit of

Which of the following rays are more penetrating?

How many colours the sunlight spectrum has?

In an atomic nucleus, neutrons and protons are held together by

According to Avogadro's Hypothesis, the smallest particle of an element or a compound, that can exist independently, is called ____ .

Atoms of an element differ from those of all other elements in

Nuclear fission is caused by the impact of

The isotope of uranium capable of sustaining chain reaction is

Glass is made of the mixture of

What are the soaps?

Very small time intervals are accurately measure by

One kilometre is equal to how many miles?

Nautical mile is a unit of distance used in

Light year is a measurement of

The major ingredient of leather is

Paper is manufactured by

Gypsum is added to cement clinker to

The vast resources of unutilised natural gas can be used in the production of

Soap is a mixture of sodium or potassium salts of

In vulcanisation, natural rubber is heated with

How does common salt help in separating soap from the solution after saponification?

Deep blue colour is imparted to glass by the presence of

Which of the following is used for removing air bubbles from glass during its manufacture?

Rayon is chemically

Which of the following is a protein?

Wood is the main raw material for the manufacture of

Optic fibres are mainly used for which of the following?

A chronometer measures

Electric current is measure by

Knot is a unit of speed of which of the following?

Kilowatt is a unit to measure