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

Question

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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Which of the following is the purest form of water out of the following?

A. Underground water

B. Rain water

C. Well water

D. Lake water

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Heating of __________ to 120°C, produces plaster of paris.

A. Blue vitriol

B. Gypsum

C. Calcium silicate

D. Calcium sulphate

Discuss this answer

Chemical name of 'alum' is

A. Barium sulphate

B. Aluminium sulphate

C. Aluminium chloride

D. Calcium sulphate

Discuss this answer

__________ of quicklime produces slaked lime.

A. Hydration

B. Dehydration

C. Hydrogenation

D. None of these

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Naphthalene is removed from coke oven gas by

A. Adsorbing on palladium

B. Absorbing in ethanolamine

C. Scrubbing with wash oil

D. Passing it through electrostatic precipitator

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Sizing material is incorporated in paper to

A. Impart resistance to penetration by liquids

B. Increase its thickness

C. Increase its flexibility & opacity

D. Increase its brightness

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Presence of H₂S in raw water (to be chlorinated) results in the

A. Reduced softening capacity of zeolite

B. Increased dosage of chlorine to provide a disinfecting residual in the water

C. Easy removal of its hardness

D. None of these

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Haemoglobin is a/an

A. Amino acid

B. Biological catalyst

C. Protein

D. Enzyme

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High temperature carbonisation of coal produces

A. Inferior coke compared to low temperature carbonisation

B. Less of gases compared to liquid products

C. Larger quantity of tar compared to low temperature carbonisation

D. None of these

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The yield of tar from high temperature carbonisation of dry coal is about __________ percent.

A. 3

B. 12

C. 22

D. 0.3

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Liquor poisoning generally occurs due to the presence of __________ in it.

A. Ethyl alcohol

B. Impurities

C. Methyl alcohol

D. Carbonic acid

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Which of the following is an unsaturated fatty acid?

A. Lauric acid

B. Palmitic acid

C. Stearic acid

D. Oleic acid

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Which of the following is an yellow pigment?

A. Titanium dioxide

B. Ferrous sulphate

C. Lead chromates

D. Zinc sulphides

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Phthalic anhydride is made by the

A. Oxidation of naphthalene

B. Oxidation of benzene

C. Dehydrogenation of ethyl benzene

D. None of these

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Zeolite is a/an

A. Naturally occuring clay which is capable of exchanging cations

B. Abrasive material

C. Catalyst used in shift conversion

D. None of these

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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

Discuss this answer

Hydrogenation of oil/fat does not

A. Improve its resistance to rancid oxidation

B. Raise its melting point

C. Remove double bonds

D. None of these

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Unsaturated oils compared to saturated oils have

A. Lower melting point & higher reactivity to oxygen

B. Higher melting point & higher reactivity to oxygen

C. Lower melting point & lower reactivity to oxygen

D. Higher melting point & lower reactivity to oxygen

Discuss this answer

Brackish water which contains mostly dissolved salt, can be purified by the __________ process.

A. Reverse osmosis

B. Sand filter

C. Lime soda

D. Permutit

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__________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia.

A. Solvay

B. Ostwald's

C. Haber's

D. None of these

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Reaction of an alcohol with organic acid is called the __________ reaction.

A. Saponification

B. Esterification

C. Neutralisation

D. Acidification

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Glycerine is recovered from lye by

A. Evaporation followed by vacuum distillation

B. Liquid extraction technique

C. Extractive distillation technique

D. None of these

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Shrinkage volume in cement setting does not depend upon the

A. Sand to cement ratio

B. Water to cement ratio

C. Ambient temperature fluctuation

D. Drying period

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Flexible foam (for mattresses) is usually made of

A. PVC

B. Silicone

C. Polyurethanes

D. Polyamides

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Oxidation of SO₂ to SO₃ is favoured by

A. Low temperature and low pressure

B. Low temperature and high pressure

C. High temperature and low pressure

D. High temperature and high pressure

Discuss this answer

Bakelite is

A. Same as Polytetrafluoroethylene (PTFE)

B. An inorganic polymer

C. Same as thermosetting phenol-formaldehyde

D. Not a polymer

Discuss this answer

Free alkali in a toilet soap is __________ that in a laundry shop.

A. Less than

B. More than

C. Same

D. None of these

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Plaster of Paris is

A. CaSO₄. ½H₂O

B. Used for setting of broken bones

C. Both (A) and (B)

D. Same as gypsum

Discuss this answer

Mannheim furnace is used in the manufacture of

A. Hydrochloric acid

B. H₂SO₄ by Chamber process

C. Calcium carbide

D. Corundum

Discuss this answer

Cooking liquor in case of sulphite process is

A. Sodium sulphite and sodium bisulphite

B. Magnesium sulphite and free SO2 in acid medium

C. Magnesium sulphate and magnesium bicarbonate

D. None of these

Discuss this answer

Accepted Answer

C. 2000-2200

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

Correct Answer :

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Related Questions

Which of the following is the purest form of water out of the following?

Heating of __________ to 120°C, produces plaster of paris.

Chemical name of 'alum' is

__________ of quicklime produces slaked lime.

Naphthalene is removed from coke oven gas by

Sizing material is incorporated in paper to

Presence of H₂S in raw water (to be chlorinated) results in the

Haemoglobin is a/an

High temperature carbonisation of coal produces

The yield of tar from high temperature carbonisation of dry coal is about __________ percent.

Liquor poisoning generally occurs due to the presence of __________ in it.

Which of the following is an unsaturated fatty acid?

Which of the following is an yellow pigment?

Phthalic anhydride is made by the

Zeolite is a/an

Pick out the wrong statement.

Hydrogenation of oil/fat does not

Unsaturated oils compared to saturated oils have

Brackish water which contains mostly dissolved salt, can be purified by the __________ process.

__________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia.

Reaction of an alcohol with organic acid is called the __________ reaction.

Glycerine is recovered from lye by

Shrinkage volume in cement setting does not depend upon the

Flexible foam (for mattresses) is usually made of

Oxidation of SO₂ to SO₃ is favoured by

Bakelite is

Free alkali in a toilet soap is __________ that in a laundry shop.

Plaster of Paris is

Mannheim furnace is used in the manufacture of

Cooking liquor in case of sulphite process is

Also checkout

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

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Which of the following is the purest form of water out of the following?

Heating of __________ to 120°C, produces plaster of paris.

Chemical name of 'alum' is

__________ of quicklime produces slaked lime.

Naphthalene is removed from coke oven gas by

Sizing material is incorporated in paper to

Presence of H2S in raw water (to be chlorinated) results in the

Haemoglobin is a/an

High temperature carbonisation of coal produces

The yield of tar from high temperature carbonisation of dry coal is about __________ percent.

Liquor poisoning generally occurs due to the presence of __________ in it.

Which of the following is an unsaturated fatty acid?

Which of the following is an yellow pigment?

Phthalic anhydride is made by the

Zeolite is a/an

Pick out the wrong statement.

Hydrogenation of oil/fat does not

Unsaturated oils compared to saturated oils have

Brackish water which contains mostly dissolved salt, can be purified by the __________ process.

__________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia.

Reaction of an alcohol with organic acid is called the __________ reaction.

Glycerine is recovered from lye by

Shrinkage volume in cement setting does not depend upon the

Flexible foam (for mattresses) is usually made of

Oxidation of SO2 to SO3 is favoured by

Bakelite is

Free alkali in a toilet soap is __________ that in a laundry shop.

Plaster of Paris is

Mannheim furnace is used in the manufacture of

Cooking liquor in case of sulphite process is

Also checkout

Presence of H₂S in raw water (to be chlorinated) results in the

Oxidation of SO₂ to SO₃ is favoured by