A substance used as a fire-extinguisher under the trade name of Pyrene is

Question

A substance used as a fire-extinguisher under the trade name of Pyrene is

A. carbon dioxide

B. chloroform

C. carbon tetrachloride

D. bleaching powder

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The human body contains about

A. 50% water

B. 10% water

C. 70% water

D. 20% water

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The percentage of silver in German silver is

A. ten

B. twenty

C. zero

D. fifty

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Which or the following is not a constituent or gun powder?

A. Ammonium nitrate

B. Nitre

C. Charcoal powder

D. Sulphur

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Which among the following is a solid non-metal?

A. chlorine

B. mercury

C. water

D. iodine

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A metal which is extracted by thermal reduction is

A. nickel

B. aluminium

C. mercury

D. calcium

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Radium was isolated from

A. galena

B. dolomite

C. sylvine

D. pitchblende

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The pure at form of iron is

A. wrought iron

B. steel

C. pig iron

D. nickel steel

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Two or more entirely different compounds having the same molecular formula are known as

A. isobars

B. isotopes

C. isomorphs

D. isomers

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Flint glass contains

A. potassium and lead silicates

B. zinc and barium borosilicates

C. potassium and calcium silicates

D. sodium and calcium silicates

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Fructose is also called

A. dextrose

B. fruit sugar

C. beet sugar

D. blood sugar

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Ozone is an allotrope of Oxygen, containing ______ atom/s of oxygen per molecule instead of two.

A. three

B. four

C. one

D. five

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Which of the following is called 'the King of Chemicals?

A. Nitric acid

B. Hydrochloric acid

C. Silver nitrate

D. Sulphuric acid

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The discoverer of chloroform was

A. Liebig

B. Pasteur

C. Bunsen

D. Erlenmeyer

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Suspended impurities in water are effectively removed by

A. adding milk of lime

B. filtering through sand

C. adding filter alum

D. chlorination

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White vitriol is

A. ZnSO4 . 7H2O

B. FeSO4 . 7H2O

C. MgSO4 . 7H2O

D. CaSO4 . 2H2O

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Which of the following is a communicable disease caused by viruses?

A. Cholera

B. Dysentery

C. Diabetes

D. Measles

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Heated saw dust catches fire when a drop of concentrated nitric acid is added to it. This is due to

A. dehydration

B. oxidation

C. reduction

D. dehydrogenation

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Which of the following represents a physical change?

A. sublimation

B. oxidation

C. reduction

D. decomposition

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Which of the following is a regenerated fibre?

A. Terylene

B. Rayon

C. Nylon

D. Silk

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PAS is a drug used In the treatment of

A. tuberculosis

B. cancer

C. typhoid

D. malaria

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The main constituent of gobar gas is

A. methane

B. nitrogen

C. carbondioxide

D. ethylene

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The freezing point of water at 760 mm pressure is

A. 273 K

B. 0 K

C. 273°C

D. -273°C

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Proteins are polymerisation products of

A. aldehydes

B. alkenes

C. amino acids

D. alkynes

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The compound which is both an antiseptic and a disinfectant is

A. phenol

B. iodoform

C. bleaching powder

D. blue vitriol

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Solid carbon dioxide (Dry ice) is also known as

A. Thiokol

B. Drikold

C. Perhydrol

D. Mannitol

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Copper is purified by

A. poling

B. tempering

C. calcination

D. galvanising

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A mixture of carbon monoxide and hydrogen is

A. coal gas

B. producer gas

C. water gas

D. gobar gas

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Compounds containing only carbon and hydrogen are called

A. carbohydrates

B. carbides

C. hydrocarbons

D. carbonyls

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Nitrous oxide used as anaesthetic is usually mixed with

A. ethyl alcohol

B. chloroform

C. oxygen

D. methyl alcohol

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Iodine in alcohol is known as

A. quick lime

B. tincture iodine

C. rectified spirit

D. None of these

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Accepted Answer

C. carbon tetrachloride

A substance used as a fire-extinguisher under the trade name of Pyrene is

Correct Answer :

Show all General Chemistry MCQ

Related Questions

The human body contains about

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A metal which is extracted by thermal reduction is

Radium was isolated from

The pure at form of iron is

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Flint glass contains

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The discoverer of chloroform was

Suspended impurities in water are effectively removed by

White vitriol is

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Heated saw dust catches fire when a drop of concentrated nitric acid is added to it. This is due to

Which of the following represents a physical change?

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PAS is a drug used In the treatment of

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Proteins are polymerisation products of

The compound which is both an antiseptic and a disinfectant is

Solid carbon dioxide (Dry ice) is also known as

Copper is purified by

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Compounds containing only carbon and hydrogen are called

Nitrous oxide used as anaesthetic is usually mixed with

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