Ascorbic acid is the chemical name for

Question

Ascorbic acid is the chemical name for

A. Vitamin B6

B. Vitamin C

C. Vitamin K

D. Vitamin D

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Which among the following is a local anaesthetic?

A. Chloroform

B. Morphine

C. Streptomycin

D. Cocaine

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Which of the following is not a food material?

A. silicate

B. protein

C. fat

D. carbohydrate

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Brass contains

A. copper and tin

B. aluminium and magnesium

C. copper and zinc

D. copper, tin and zinc

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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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Hypo' is

A. sodium nitrate

B. Potassium nitrate

C. sodium thiosulphate

D. ammonium chloride

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Which or the following gases is soluble in water and Is collected by the downward displacement or air?

A. Carbon dioxide

B. Sulphur dioxide

C. Ammonia

D. Hydrogen

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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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Iron is rendered passive by

A. conc. H2SO4

B. conc. HCl

C. conc. HNO3

D. acetic acid

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Compounds of nitrogen with metals are called

A. nitrates

B. nitrites

C. hyponitrates

D. nitrides

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Carbogen is used in

A. CO2 poisoning

B. CO poisoning

C. phosgene poisoning

D. anesthesia

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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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The gas used in balloons in the place of hydrogen is

A. nitrogen

B. helium

C. neon

D. argon

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Calamine is a ore of

A. tine

B. magnesium

C. zinc

D. copper

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Petroleum ether is also known as

A. kerosene

B. naphtha

C. lubricating oil

D. asphalt

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The chemical name of aspirin is

A. acetamide phenol

B. malonyl urea

C. aminosalicylic acid

D. acetyl salicylic acid

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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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Which of the following process involves removal of the elements of water?

A. Hydrolysis

B. Hydrogenation

C. Dehydration

D. Dehydrogenation

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Rooms in places infected by plague are disinfected using

A. bleaching powder

B. iodoform

C. sulphur dioxide

D. chlorine

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Concrete is a mixture of

A. cement an limestone

B. cement and sand

C. cement and gravel

D. cement, sand and gravel

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The name rubber was given by

A. Lavoisier

B. Priestley

C. Dalton

D. Avogadro

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Which of the following is a halogen?

A. Radon

B. Astatine

C. Cesium

D. Ruthenium

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Which of the following is not a chemical change?

A. Rusting of iron

B. Burning of magnesium

C. Sublimation of iodine

D. Electrolysis of water

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In the nitrogen cycle, denitrifying bacteria

A. oxidise ammonia to nitrates

B. convert nitrogen into ammonia

C. oxidise ammonia to free nitrogen

D. oxidise ammonia to oxides of nitrogen

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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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Rusting of iron cannot be prevented by

A. painting

B. applying alkaline phosphate

C. applying soap water

D. galvanising

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The noble gas which is present in microscopic quantities in air is

A. xenon

B. krypton

C. argon

D. helium

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Copper is purified by

A. poling

B. tempering

C. calcination

D. galvanising

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Galvanised iron sheets are protected from rusting due to the presence of a layer of

A. lead

B. chromium

C. zinc

D. tin

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Washing soda is

A. sodium hydroxide

B. sodium carbonate

C. sodium bicarbonate

D. potassium chloride

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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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Accepted Answer

B. Vitamin C

Ascorbic acid is the chemical name for

Correct Answer :

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Hypo' is

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