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4

A compound of carbon used as anaesthetic is

A. carbon disulphide

B. carbon tetrachloride

C. phosgene

D. chloroform

Correct Answer :

D. chloroform


Related Questions

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4

The non-metal which has a shining appearance is

A. sulphur

B. phosphorus

C. iodine

D. bromine

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4

Dust particles in the air of large industrial cities are removed by

A. Sedimentation

B. Electrophoresis

C. Tyndall effect

D. Brownian movement

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4

The principle involved in dialysis, a treatment administered to patients with affected kidneys is

A. Cataphoresis

B. Osmosis

C. Dehydration

D. Diffusion

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4

Ozone occurs in the upper layers of air in the atmosphere because

A. it is lighter than air

B. in the lower layers it becomes unstable

C. ultra-violet light is present only in the upper layers

D. it mixes freely with O2 in the upper layers

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4

Annealing of glass is carried out by

A. rapid cooling

B. rapid heating

C. slow cooling

D. slow heating

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4

Copper is purified by

A. poling

B. tempering

C. calcination

D. galvanising

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4

Which is the 'odd man' in the following?

A. brass

B. common salt

C. cane sugar

D. water

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4

Oxalic acid is used in the manufacture of

A. tincture iodine

B. paints

C. ink

D. aerated water

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4

During fermentation, the by-product is

A. ethyl alcohol

B. methyl alcohol

C. carbon monoxide

D. carbon dioxide

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4

Isotopes differ in the number of

A. Protons

B. Neutrons

C. Electrons

D. Protons and electrons

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4

Which one of the following is not radioactive?

A. Astatine

B. Francium

C. Tritium

D. Zirconium

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4

The ore of iron is

A. Dolomite

B. Magnetite

C. Bauxite

D. Anglesite

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4

Calomel is

A. lead chloride

B. mercurous chloride

C. mercuric chloride

D. calcium sulphate

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4

Which of the following is a mixture?

A. Baking soda

B. Milk

C. Chloroform

D. Copper wire

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4

The artificial silk produced from cellulose is

A. Polyethylene

B. Nylon

C. Terylene

D. Rayon

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4

Which or the following electrolysis?

A. Aluminium

B. Copper

C. Zinc

D. Iron

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4

Which among the following is a metalloid?

A. Tin

B. Silver

C. Iodine

D. Arsenic

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Which of the following represents a physical change?

A. sublimation

B. oxidation

C. reduction

D. decomposition

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Phosgene is a compound of

A. red phosphorus and oxygen

B. white phosphorus and oxygen

C. carbon monoxide and chlorine

D. carbon dioxide and chlorine

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4

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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4

Which of the following statements regarding natural radioactivity is true?

A. It is spontaneous disintegration of atoms

B. It is induced by bombardment with projectiles

C. It is transmutation of atoms with projectiles

D. It is dependent on temperature

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4

BHC is a

A. Rodenticide

B. Herbicide

C. Pesticide

D. Fungicide

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Chloroform used as anaesthetic should be preserved In the dark in tightly stoppered bottles because otherwise

A. it becomes coloured

B. it gets evaporated in air

C. it gets oxidised to phosgene

D. it gets decomposed to chloropicrin

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4

Mortar contains cement and sand in the ratio of

A. 1 : 1

B. 1 : 2

C. 2 : 3

D. 1 : 3

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4

On chemical analysis, a bottle cork is found to contain primarily

A. proteins

B. carbohydrates

C. tannins

D. lipids

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4

Which of the following is not a metal?

A. Lithium

B. Helium

C. Sodium

D. Cobalt

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Tincture iodine is a solution of

A. iodine in potassium iodide

B. iodine in alcohol

C. iodine in water

D. iodine in carbon disulphide

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A burning substance which continues to burn in a jar of carbon dioxide is

A. zinc

B. red phosphorus

C. magnesium

D. sulphur

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An acid which is used as a preservative for pickles is

A. hydrochloric acid

B. citric acid

C. tartaric acid

D. acetic acid

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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