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Current Affairs January 2024

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4

Argyrol used as eye ointment is a solution of

A. hydrogen peroxide

B. silver nitrate

C. tincture iodine

D. m-cresol

Correct Answer :

B. silver nitrate


Related Questions

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4

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

The science which deals with the chemistry of life processes is known as

A. electrochemistry

B. physical chemistry

C. biochemistry

D. tinctorial chemistry

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4

A non-metal which is a good conductor or heat and electricity is

A. iodine

B. sulphur

C. graphite

D. phosphorus

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4

The presence of dust particles in air serves

A. as a nucleus to condense water vapour resulting in rain

B. to maintain the average density of air

C. to minimise the inflammatory nature of oxygen

D. to protect the inhabitants of the earth from the effects of ultra violet rays.

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4

The chemical name of aspirin is

A. acetamide phenol

B. malonyl urea

C. aminosalicylic acid

D. acetyl salicylic acid

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4

Smelling salt contains

A. ammonium chloride

B. ammonium carbonate

C. ammonium sulphate

D. potassium nitrate

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4

When ants bite, they inject

A. glacial acetic acid

B. methanol

C. formic acid

D. stearic acid

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4

Which among the following gases present in the air discolours brass nameplates?

A. Hydrogen Sulphide

B. Nitrogen

C. Carbon-di-oxide

D. Oxygen

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4

The commonest ore of aluminium is

A. cryolite

B. bauxite

C. malachite

D. azurite

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4

CAN is used as (Calcium Ammonium Nitrate)

A. an explosive

B. a fertilizer

C. a dye

D. a bleaching agent

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4

Radium was isolated from

A. galena

B. dolomite

C. sylvine

D. pitchblende

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4

In photography, the compound or nitrogen used is

A. Potassium nitrate

B. Silver nitrate

C. Ammonium carbonate

D. Ammonium bicarbonate

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4

Boiler scales' contain

A. calcium carbonate

B. magnesium bicarbonate

C. calcium sulphate

D. magnesium sulphate

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4

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

A. Cholera

B. Dysentery

C. Diabetes

D. Measles

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4

The ore of iron is

A. Dolomite

B. Magnetite

C. Bauxite

D. Anglesite

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4

The poisonous nature of carbon monoxide is due to

A. cutting off supply of oxygen

B. it™s being converted into carbon dioxide

C. its combination with haemoglobin of blood

D. its blocking of vocal chords

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4

A light alloy having high tensile strength is

A. German silver

B. solder

C. magnalium

D. bell metal

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4

Ethyl alcohol is

A. a deliquescent substance

B. an efflorescent substance

C. a hygroscopic substance

D. a dehydrating substance

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4

Metals are usually heavy. A light metal is

A. manganese

B. copper

C. potassium

D. plumbum

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4

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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4

Gold dissolves in aqua regia due to the formation of

A. chloro auric acid

B. auric chloride

C. gold nitrate

D. aurous chloride

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4

A compound of carbon used as anaesthetic is

A. carbon disulphide

B. carbon tetrachloride

C. phosgene

D. chloroform

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4

The earliest name given to nitrogen was

A. dephlogisticated air

B. azote

C. inflammable air

D. marine acid air

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4

Vulcanisation was discovered by

A. Goodyear

B. Wohler

C. Baeyer

D. Perkin

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4

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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4

Mild steel contains

A. iron with very low percentage of carbon

B. iron with high percentage of carbon

C. iron and chromium

D. iron and manganese

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4

Vinegar is the trade name for

A. chloroform

B. acetic acid

C. phenol

D. carbon tetrachloride

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4

An essential condition for rusting is

A. high temperature

B. light

C. moisture

D. dry air

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4

Which of the following cannot be used for the preparation of soap?

A. oleic acid

B. acetic acid

C. palmitic acid

D. stearic acid

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4

A valuable by-product in the manufacture of soap is

A. stearic acid

B. sodium hydroxide

C. palmitic acid

D. glycerol