Penicillin, an antibiotic drug was discovered by

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Penicillin, an antibiotic drug was discovered by

A. Alexander

B. Flaming

C. Doctor Zhivago

D. None of these

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Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on commercial scale.

A. Nickel

B. Vanadium

C. Alumina

D. Iron

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Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement?

A. Xanthates

B. Stearic acid

C. Calcium & aluminium stearate

D. Formic acid

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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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Presence of sodium tripolyphosphate (an additive) in synthetic detergent

A. Facilitates its use even in hard water (by sequestering the water-hardening Ca & Mg ions)

B. Inhibits its corrosive effects

C. Does not allow redeposition of dirt on the cleaned surface

D. None of these

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Molecular weights of polymers are in the range of

A. 10² - 10²

B. 10⁵ - 10⁹

C. 10² - 10⁷

D. 10⁹ - 10¹¹

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Separation of fresh water from sea water can be done by the __________ operation.

A. Osmosis

B. Reverse osmosis

C. Absorption

D. Adsorption

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Favourable conditions for the liquefaction of gases in general are

A. High pressure & low temperature

B. Low pressure & high temperature

C. High pressure & high temperature

D. Low pressure & low temperature

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Chrome tanning and vegetable tanning are done for

A. Light & heavy leather respectively

B. Heavy & light leather respectively

C. Both light & heavy leather

D. Neither light nor heavy leather

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Molasses is the starting material for the production of

A. Alcohol

B. Essential oil

C. Fatty acids

D. Massecuite

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The compressive strength of cement should not be less than about 110Kg/cm² after three days & not less than 170Kg/cm² after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm²/gm.

A. 800

B. 1600

C. 4000

D. 8500

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Na₂CO₃.10H₂O is called

A. Washing soda

B. Soda ash

C. Slaked lime

D. Quicklime

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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

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Use of chlorine in the treatment of sewage

A. Helps in grease separation

B. Increases the biological oxygen demand (BOD)

C. Causes bulking of activated sludge

D. Aids in flocculation

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Titanium dioxide is a/an __________ colour pigment.

A. White

B. Black

C. Yellow

D. Blue

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Insulin is an __________ drug.

A. Anti-malarial

B. Anti-TB

C. Antibiotic

D. None of these

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Fatty material used in soap making is

A. Fatty acid

B. Fatty alcohols

C. Tallow

D. Detergents

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The difference between saponification value and acid value is

A. Called ester value

B. Always negative

C. Constant for all fatty oils

D. None of these

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Permanent hardness of water can be removed by

A. Boiling

B. Adding Ca(OH)₂

C. Boiling it with Na₂CO₃

D. None of these

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Fusion of bauxite and __________ produces high alumina cement.

A. Alum

B. Limestone

C. Coke

D. Quartz

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Helium is produced on commercial scale from

A. Air

B. Natural gas

C. Coke oven gas

D. None of these

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Salt is added in the kettle during soap manufacture to separate

A. Soap from lye

B. Glycerine from lye

C. The metallic soap

D. The unsaponified fat from soap

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The main use of HCl is in the

A. Drilling of petroleum wells and pickling of steel sheets

B. Manufacture of cationic detergent

C. Treatment of spent fuel of nuclear reactor

D. None of these

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Which form of sulphur is the most stable at room temperature?

A. Plastic

B. Monoclinic

C. Rhombic

D. Flowers of sulphur

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Iron ore hematite is concentrated using

A. Electromagnetic separation mainly

B. Gravity separation

C. Froth floatation

D. Roasting

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Which of the following is not a food additive?

A. Citric acid

B. Invertage

C. Benzoyl peroxide

D. Ammonium chloride

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Pick out the wrong statement.

A. DDT is manufactured by the condensation of chlorobenzene with chloral at 30°C in presence of oleum, which is a highly exothermic reaction

B. Chloral is obtained by the chlorination of ethyl alcohol

C. Insecticides acting on the insects through the respiratory system are called fumigants

D. Benzene hexachloride is not a contact insecticide

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

A. Blue vitriol

B. Gypsum

C. Calcium silicate

D. Calcium sulphate

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The main component of Pyrex glass is

A. Zinc

B. Lead

C. Boron

D. Selenium

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Which of the following has sodium bicarbonate as its main constituent?

A. Baking soda

B. Baking powder

C. Washing soda

D. None of these

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Ethyl alcohol cannot be produced

A. From waste sulphite substrate of paper mills

B. By Esterification and hydrolysis of ethylene

C. From molasses

D. None of these

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Accepted Answer

A. Alexander

Penicillin, an antibiotic drug was discovered by

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on commercial scale.

Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement?

Hydrogenation of oil/fat does not

Presence of sodium tripolyphosphate (an additive) in synthetic detergent

Molecular weights of polymers are in the range of

Separation of fresh water from sea water can be done by the __________ operation.

Favourable conditions for the liquefaction of gases in general are

Chrome tanning and vegetable tanning are done for

Molasses is the starting material for the production of

The compressive strength of cement should not be less than about 110Kg/cm² after three days & not less than 170Kg/cm² after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm²/gm.

Na₂CO₃.10H₂O is called

Oxidation of SO₂ to SO₃ is favoured by

Use of chlorine in the treatment of sewage

Titanium dioxide is a/an __________ colour pigment.

Insulin is an __________ drug.

Fatty material used in soap making is

The difference between saponification value and acid value is

Permanent hardness of water can be removed by

Fusion of bauxite and __________ produces high alumina cement.

Helium is produced on commercial scale from

Salt is added in the kettle during soap manufacture to separate

The main use of HCl is in the

Which form of sulphur is the most stable at room temperature?

Iron ore hematite is concentrated using

Which of the following is not a food additive?

Pick out the wrong statement.

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

The main component of Pyrex glass is

Which of the following has sodium bicarbonate as its main constituent?

Ethyl alcohol cannot be produced

Also checkout

Penicillin, an antibiotic drug was discovered by

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on commercial scale.

Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement?

Hydrogenation of oil/fat does not

Presence of sodium tripolyphosphate (an additive) in synthetic detergent

Molecular weights of polymers are in the range of

Separation of fresh water from sea water can be done by the __________ operation.

Favourable conditions for the liquefaction of gases in general are

Chrome tanning and vegetable tanning are done for

Molasses is the starting material for the production of

The compressive strength of cement should not be less than about 110Kg/cm2 after three days & not less than 170Kg/cm2 after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm2/gm.

Na2CO3.10H2O is called

Oxidation of SO2 to SO3 is favoured by

Use of chlorine in the treatment of sewage

Titanium dioxide is a/an __________ colour pigment.

Insulin is an __________ drug.

Fatty material used in soap making is

The difference between saponification value and acid value is

Permanent hardness of water can be removed by

Fusion of bauxite and __________ produces high alumina cement.

Helium is produced on commercial scale from

Salt is added in the kettle during soap manufacture to separate

The main use of HCl is in the

Which form of sulphur is the most stable at room temperature?

Iron ore hematite is concentrated using

Which of the following is not a food additive?

Pick out the wrong statement.

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

The main component of Pyrex glass is

Which of the following has sodium bicarbonate as its main constituent?

Ethyl alcohol cannot be produced

Also checkout

The compressive strength of cement should not be less than about 110Kg/cm² after three days & not less than 170Kg/cm² after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm²/gm.

Na₂CO₃.10H₂O is called

Oxidation of SO₂ to SO₃ is favoured by