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Current Affairs January 2024

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Which of the following is a mixture?

A. Baking soda

B. Milk

C. Chloroform

D. Copper wire

Correct Answer :

B. Milk


Related Questions

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Apart from lead tetra-ethyl, the other compound used as antiknock is

A. n-heptane

B. n-octane

C. iso-heptane

D. iso-octane

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The rate of setting of cement is slowed down by the addition of

A. quicklime

B. gypsum

C. soda lime

D. bleaching powder

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A non-material kind of pollution is

A. land pollution

B. air pollution

C. noise pollution

D. water pollution

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In addition to nitric acid, another acid which may render iron passive is

A. acetic acid

B. oxalic acid

C. chromic acid

D. citric acid

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Which of the following is a regenerated fibre?

A. Terylene

B. Rayon

C. Nylon

D. Silk

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The addition of a neutron to the nucleus of an atom

A. increases the atomic mass of the atom

B. decreases the atomic mass of the atom

C. increases the charge on the nucleus

D. decreases the charge on the nucleus

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Hypo' is

A. sodium nitrate

B. Potassium nitrate

C. sodium thiosulphate

D. ammonium chloride

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A form of carbon which is a good lubricant is

A. diamond

B. coke

C. graphite

D. charcoal

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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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Washing soda is

A. sodium hydroxide

B. sodium carbonate

C. sodium bicarbonate

D. potassium chloride

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The formula for cane sugar is

A. C6H12O6

B. C2H5OH

C. C12H22O11

D. C7H8O

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The oldest known organic compound is

A. urea

B. methane

C. acetic acid

D. benzene

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Acute diabetes patients smell of

A. acetone

B. ether

C. ethyl alcohol

D. methyl alcohol

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________ is left behind after distillation of petroleum.

A. Arsenic

B. Barium

C. Benzene

D. Bitumen

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Which one of the following is present in the largest amount in terms of per cent by mass in the earth's crust?

A. Silicon

B. Oxygen

C. Carbon

D. Calcium

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A metal which occurs 'free' in nature is

A. gold

B. zinc

C. tin

D. molybdenum

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One method by which the components of air can be separated is

A. shaking with caustic soda solution

B. shaking with water

C. fractional distillation of liquid air

D. passing air over heated magnesium

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Colour blindness is

A. a congenital disease

B. a communicable disease

C. an acquired disease

D. a contagious disease

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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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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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Refined petroleum is decolourised by

A. manganese dioxide

B. bauxite

C. animal charcoal

D. quicklime

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Setting of cement is due to

A. hydration

B. dehydration

C. dialysis

D. osmosis

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Ethyl alcohol is

A. a deliquescent substance

B. an efflorescent substance

C. a hygroscopic substance

D. a dehydrating substance

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The first organic compound prepared in the laboratory was

A. acetic acid

B. chloroform

C. urea

D. methane

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The discoverer of chloroform was

A. Liebig

B. Pasteur

C. Bunsen

D. Erlenmeyer

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The substance most abundantly found in sea water is

A. magnesium chloride

B. sodium chloride

C. calcium sulphate

D. potassium chloride

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Calomel is

A. lead chloride

B. mercurous chloride

C. mercuric chloride

D. calcium sulphate

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Which of the following is an essential constituent of acids?

A. Oxygen

B. Nitrogen

C. Hydrogen

D. Chlorine

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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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The depletion of the ozone layer in the upper atmosphere is due to -extensive use of

A. dichloro-phenoxy-acetic acid

B. superphosphate of lime

C. chlorofluorocarbons (CFC)

D. dichloro-diphenyl-trichloro-ethane