Which of the following is not a chemical change?

Question

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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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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Cholesterol is

A. a carbohydrate

B. a protein

C. a lipid

D. a hormone

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The raw materials required for the manufacture of glass are

A. silica, sodium nitrate and soda ash

B. silica, limestone and sodium nitrate

C. silica, sodium oxide and limestone

D. silica, soda ash and limestone

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The alloy which is extremely hard and resistant to acids is

A. chrome steel

B. silicon steel

C. stainless steel

D. invar

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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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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 soaps used in shaving cream are

A. calcium soaps

B. lead soaps

C. soft soaps

D. hard soaps

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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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Consider the following statements: Hard water is not suitable for
1) drinking
2) washing clothes with soap
3) use in boilers
4) irrigating crops
Which of these statements are correct?

A. 1 and 3

B. 2 and 3

C. 1, 2 and 4

D. 1, 2, 3 and 4

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Bordeaux mixture contains

A. copper sulphate and water

B. copper sulphate, lime and water

C. thio-urea and lime

D. copper sulphate and thio-urea

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Which one of the following gases is extremely soluble in water?

A. Carbon dioxide

B. Ammonia

C. Chlorine

D. Hydrogen sulphide

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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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Reduction involves

A. loss of electrons

B. gain of electrons

C. gain of oxygen

D. removal of hydrogen

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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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Hypo' is

A. sodium nitrate

B. Potassium nitrate

C. sodium thiosulphate

D. ammonium chloride

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A metal which exhibits allotropy is

A. cobalt

B. tin

C. manganese

D. platinum

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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

Discuss this answer

Galvanising is coating Iron with

A. nickel

B. zinc

C. chromium

D. copper

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Oxalic acid is used in the manufacture of

A. tincture iodine

B. paints

C. ink

D. aerated water

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Which of the following is a mixture?

A. Baking soda

B. Milk

C. Chloroform

D. Copper wire

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The malarial parasite was discovered by

A. Sir Ronald Ross

B. Sir Francis Haig

C. Dr Jagadish Chandra Bose

D. Sir CV Raman

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In the mouth, starch is converted into ______ by the action of saliva.

A. sucrose

B. glucose

C. fructose

D. mannose

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Which of the following is not a metal?

A. Lithium

B. Helium

C. Sodium

D. Cobalt

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Which of the following can absorb gases quickly?

A. Activated charcoal

B. Anthracite coal

C. Diamond

D. Graphite

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Rayon la made from

A. cotton

B. wool

C. cellulose

D. silk

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Nylon is made from

A. terephthalic acid and ethylene glycol

B. hexamethylene diamine and adipic acid

C. cellulose nitrate

D. cellulose acetate

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Carbogen is used in

A. CO2 poisoning

B. CO poisoning

C. phosgene poisoning

D. anesthesia

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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 earliest known acid is

A. nitric acid

B. oxalic acid

C. carbonic acid

D. acetic acid

Discuss this answer

Which of the following biology laboratory?

A. Phenol

B. Benzaldehyde

C. Formaldehyde

D. Acetic acid

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Accepted Answer

C. Sublimation of iodine

Which of the following is not a chemical change?

Correct Answer :

Show all General Chemistry MCQ

Related Questions

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

Cholesterol is

The raw materials required for the manufacture of glass are

The alloy which is extremely hard and resistant to acids is

The first organic compound prepared in the laboratory was

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

The soaps used in shaving cream are

Gold dissolves in aqua regia due to the formation of

Consider the following statements: Hard water is not suitable for
1) drinking
2) washing clothes with soap
3) use in boilers
4) irrigating crops
Which of these statements are correct?

Bordeaux mixture contains

Which one of the following gases is extremely soluble in water?

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

Reduction involves

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

Hypo' is

A metal which exhibits allotropy is

Which of the following is not a chemical change?

Galvanising is coating Iron with

Oxalic acid is used in the manufacture of

Which of the following is a mixture?

The malarial parasite was discovered by

In the mouth, starch is converted into ______ by the action of saliva.

Which of the following is not a metal?

Which of the following can absorb gases quickly?

Rayon la made from

Nylon is made from

Carbogen is used in

Which of the following is a regenerated fibre?

The earliest known acid is

Which of the following biology laboratory?

Also checkout

Which of the following is not a chemical change?

Correct Answer :

Show all General Chemistry MCQ

Related Questions

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

Cholesterol is

The raw materials required for the manufacture of glass are

The alloy which is extremely hard and resistant to acids is

The first organic compound prepared in the laboratory was

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

The soaps used in shaving cream are

Gold dissolves in aqua regia due to the formation of

Consider the following statements: Hard water is not suitable for1) drinking2) washing clothes with soap3) use in boilers4) irrigating cropsWhich of these statements are correct?

Bordeaux mixture contains

Which one of the following gases is extremely soluble in water?

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

Reduction involves

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

Hypo' is

A metal which exhibits allotropy is

Which of the following is not a chemical change?

Galvanising is coating Iron with

Oxalic acid is used in the manufacture of

Which of the following is a mixture?

The malarial parasite was discovered by

In the mouth, starch is converted into ______ by the action of saliva.

Which of the following is not a metal?

Which of the following can absorb gases quickly?

Rayon la made from

Nylon is made from

Carbogen is used in

Which of the following is a regenerated fibre?

The earliest known acid is

Which of the following biology laboratory?

Also checkout

Consider the following statements: Hard water is not suitable for
1) drinking
2) washing clothes with soap
3) use in boilers
4) irrigating crops
Which of these statements are correct?