Pick out the wrong statement.

Question

Pick out the wrong statement.

A. Conversion of SO₂ to SO₃ in Monsanto-4 pass converter is about 98%

B. The chemical formula of oleum is H2S2O7, which is formed by saturating sulphuric acid with sulphur trioxide

C. Vitriol oil is nothing but technical sulphuric acid

D. Decomposition of sulphuric acid on heating does not start before its boiling

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Which of the following fuel gases contains maximum amount of carbon monoxide?

A. Coke oven gas

B. Water gas

C. Blast furnace gas

D. L.D. converter gas

Discuss this answer

Soaps remove dirt by

A. Increasing the surface tension

B. Decreasing wettability

C. Supplying hydrophilic group

D. None of these

Discuss this answer

Which of the following is a constituent of coffee?

A. Caffeine

B. Nicotine

C. Calgon

D. Lignin

Discuss this answer

Carbon tetrachloride (CCl₄) is the starting raw material for the manufacture of

A. Trichloroethylene

B. Perchloroethylene

C. Parathion

D. Methanol

Discuss this answer

Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of

A. Nitric acid

B. Sulphuric acid

C. Ammonium sulphate

D. Hydrochloric acid

Discuss this answer

Which of the following is the second major component of cement?

A. Al₂O₃

B. CaO

C. SiO₂

D. Fe₂O₃

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Black liquor is converted into white liquor by

A. Evaporation and burning the concentrate followed by causticisation of products

B. Multi-effect evaporation only

C. Selective liquid extraction

D. Extractive distillation

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The most commonly used substance to speed up the sedimentation of sewage is

A. Lime

B. Sulphuric acid

C. Chlorine

D. Sodium bisulphite

Discuss this answer

Na2CO3 is called

A. Washing soda

B. Soda ash

C. Plaster of Paris

D. Calcite

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Which of the following is an endothermic reaction?

A. Absorption of SO₃ in 98% H₂SO₄

B. C + H₂O = CO + H₂

C. Thermal dissociation of iron pyrites

D. Both (B) and (C)

Discuss this answer

Fermentation is adversely affected by the

A. Presence of air

B. Absence of air

C. High concentration

D. Presence of ammonium salts

Discuss this answer

Neon gas is

A. Flammable in nature

B. Used in color discharge tube

C. Filled in lamps having tungsten filament

D. All (A), (B) and (C)

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Potassium is kept & transported under

A. Water

B. Liquid ammonia

C. Kerosene oil

D. Alcohol

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A good quality coal should have

A. Low fusion point of ash

B. High ash content

C. High sulphur content

D. None of these

Discuss this answer

Fat dispersed in water is exemplified by

A. Colloids

B. Gel

C. Butter

D. Emulsion

Discuss this answer

Bleaching of paper pulp is done with

A. Activated clay

B. Bromine

C. Chlorine or chlorine dioxide

D. Magnesium sulphite

Discuss this answer

Bitterns is a/an

A. Unsaturated fat

B. Starting material for the production of iodine

C. By-product of chlor-alkali industry

D. None of these

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The temperature in the calcium carbide furnace is __________ °C.

A. 200-300

B. 700-850

C. 2000-2200

D. 4000-4500

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Salt cake is chemically represented by

A. Na₂SO₄

B. CaSO₄. ½H₂O

C. MgSO₄

D. BaSO₄

Discuss this answer

Oils are partially hydrogenated (not fully) to manufacture Vanaspati, because fully saturated solidified oils

A. Cause cholesterol build up and blood clotting

B. Are prone to rancid oxidation

C. Always contain some amount of nickel (as their complete removal is very difficult)

D. Have affinity to retain harmful sulphur compounds

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Which of the following is not a food additive?

A. Citric acid

B. Invertage

C. Benzoyl peroxide

D. Ammonium chloride

Discuss this answer

Hydrazine (N₂H₄) is used mainly as a/an

A. Explosive

B. Rocket fuel

C. Detergents additive

D. None of these

Discuss this answer

Sucrose content in cane sugar may be around __________ percent.

A. 50

B. 70

C. 95

D. 80

Discuss this answer

Wood charcoal is used for decolouration of sugar, because it __________ the coloured materials.

A. Adsorbs

B. Oxidises

C. Reduces

D. Converts

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Metallic soap (e.g. aluminium or calcium salts of fatty acids) can be used

A. As a lubricant

B. As a rust preventive

C. In hard water for cleaning of cloth

D. As a foam depressant in distillation column

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Nickel is not used as a catalyst in the __________ reaction.

A. Shift conversion

B. Oil hydrogenation

C. Steaming reforming of naphtha

D. Ammonia cracking/dissociation

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Platinum catalyst used in the earlier days of sulphuric acid manufacture by contact process suffers from the drawback like

A. High cost

B. Fragile nature

C. Easy poisoning tendency

D. All (A), (B) and (C)

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Presence of carbonaceous matter in the sewage

A. Causes reduction in its dissolved oxygen content thereby endangering the life of aquatic creatures

B. Reduces sulphate ions to sulphides causing obnoxious smell

C. Increases the quantity of chlorine used for its purification

D. All (A), (B) and (C)

Discuss this answer

Naphthols are derivates of

A. Methyl amine

B. Naphthalene

C. Phenol

D. Xylene

Discuss this answer

Celluloid is chemically

A. Cellulose acetate

B. Regenerated cellulose

C. Cellulose nitrate

D. Cellulose acetate butyrate

Discuss this answer

Accepted Answer

D. Decomposition of sulphuric acid on heating does not start before its boiling

Pick out the wrong statement.

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Which of the following fuel gases contains maximum amount of carbon monoxide?

Soaps remove dirt by

Which of the following is a constituent of coffee?

Carbon tetrachloride (CCl₄) is the starting raw material for the manufacture of

Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of

Which of the following is the second major component of cement?

Black liquor is converted into white liquor by

The most commonly used substance to speed up the sedimentation of sewage is

Na2CO3 is called

Which of the following is an endothermic reaction?

Fermentation is adversely affected by the

Neon gas is

Potassium is kept & transported under

A good quality coal should have

Fat dispersed in water is exemplified by

Bleaching of paper pulp is done with

Bitterns is a/an

The temperature in the calcium carbide furnace is __________ °C.

Salt cake is chemically represented by

Oils are partially hydrogenated (not fully) to manufacture Vanaspati, because fully saturated solidified oils

Which of the following is not a food additive?

Hydrazine (N₂H₄) is used mainly as a/an

Sucrose content in cane sugar may be around __________ percent.

Wood charcoal is used for decolouration of sugar, because it __________ the coloured materials.

Metallic soap (e.g. aluminium or calcium salts of fatty acids) can be used

Nickel is not used as a catalyst in the __________ reaction.

Platinum catalyst used in the earlier days of sulphuric acid manufacture by contact process suffers from the drawback like

Presence of carbonaceous matter in the sewage

Naphthols are derivates of

Celluloid is chemically

Also checkout

Pick out the wrong statement.

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Which of the following fuel gases contains maximum amount of carbon monoxide?

Soaps remove dirt by

Which of the following is a constituent of coffee?

Carbon tetrachloride (CCl4) is the starting raw material for the manufacture of

Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of

Which of the following is the second major component of cement?

Black liquor is converted into white liquor by

The most commonly used substance to speed up the sedimentation of sewage is

Na2CO3 is called

Which of the following is an endothermic reaction?

Fermentation is adversely affected by the

Neon gas is

Potassium is kept & transported under

A good quality coal should have

Fat dispersed in water is exemplified by

Bleaching of paper pulp is done with

Bitterns is a/an

The temperature in the calcium carbide furnace is __________ °C.

Salt cake is chemically represented by

Oils are partially hydrogenated (not fully) to manufacture Vanaspati, because fully saturated solidified oils

Which of the following is not a food additive?

Hydrazine (N2H4) is used mainly as a/an

Sucrose content in cane sugar may be around __________ percent.

Wood charcoal is used for decolouration of sugar, because it __________ the coloured materials.

Metallic soap (e.g. aluminium or calcium salts of fatty acids) can be used

Nickel is not used as a catalyst in the __________ reaction.

Platinum catalyst used in the earlier days of sulphuric acid manufacture by contact process suffers from the drawback like

Presence of carbonaceous matter in the sewage

Naphthols are derivates of

Celluloid is chemically

Also checkout

Carbon tetrachloride (CCl₄) is the starting raw material for the manufacture of

Hydrazine (N₂H₄) is used mainly as a/an