Plasticisers are added to paints to

Question

Plasticisers are added to paints to

A. Make it corrosion resistant

B. Make glossy surface

C. Give elasticity & prevent cracking of the film

D. Increase atmospheric oxidation

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Cumene is the starting material for the production of

A. Benzoic acid

B. Phenol and acetone

C. Isoprene

D. Styrene

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What products do we get on electrolysis of saturated brine using steel cathode and graphite anode in an electrolytic cell?

A. Cl₂ & Na

B. Cl₂ & H₂

C. O₂ & H₂

D. Cl₂, H₂ & NaOH solution

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Comparing sulphate process with sulphite process, we find that __________ in the later.

A. Both temperature & pressure in the former is less than that

B. Both temperature & pressure in the former is more than that

C. Temperature is more in the former whereas pressure is more

D. Pressure is more in the former whereas temperature is less

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In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the

A. Diamine and the ring

B. Dibasic acid and the ring

C. Diamine and the dibasic acid

D. None of these

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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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Portland cement consists mainly of

A. CaO & SiO₂

B. SiO₂ & Al₂O₃

C. CaO & Al₂O₃

D. CaO & Fe₂O₃

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Which of the following processes can remove both temporary as well as permanent hardness of water?

A. Filtration

B. Boiling

C. Distillation

D. None of these

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__________ acid is an unsaturated fatty acid.

A. Palmitic

B. Oleic

C. Stearic

D. Oxalic

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Solvay process is not used for the manufacture of potassium carbonate, because of the reason that potassium bicarbonate

A. Is prone to thermal decomposition

B. Has high water solubility and is unstable

C. Is soluble in ammonium chloride and potassium chloride solution

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

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The type of high refractive index glass used in optical instruments is __________ glass.

A. Pyrex

B. Flint

C. Crookes

D. None of these

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Co-efficient of thermal expansion of glass is decreased by the addition of __________ during its manufacture.

A. CaO

B. MnO₂

C. ZnO

D. FeS

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Molecular weight of plastics ranges from

A. 5000 to 10000

B. 20000 to 250000

C. 500 to 5000

D. 106 to 109

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RDX (an explosive), which is more sensitive but less toxic than TNT, is chemically

A. Cyclo trimethylene trinitramine

B. Trinitro resorcinol

C. Cyclo tetramethylene tetranitramine

D. Trinitrobenzene

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During the absorption of HCl gas in water (to produce liquid HCl), the gas is kept above dew point to

A. Increase the rate of absorption

B. Avoid corrosion

C. Reduce the cooling water circulation rate

D. None of these

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Washing soda is chemically represented by

A. Na₂CO₃

B. Na₂CO₃.H₂O

C. Na₂CO₃.10H₂O

D. NaHCO₃

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__________ glass is used for the manufacture of optical glass.

A. Pyrex

B. Soda

C. Flint

D. Crooke's

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Platinum is a versatile catalyst for many processes in chemical industries. It is highly prone to be poisoned by the presence of

A. Carbon

B. Arsenic

C. Lead

D. Sulphur

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Concentration of NaOH solution produced by diaphragm electrolytic cell is about __________ percent.

A. 10

B. 25

C. 50

D. 98

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Riboflavin is a/an

A. Vitamin

B. Analgesic drug

C. Anaesthetics

D. Anti-malarial drug

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Gun powder, which is an explosive comprises of charcoal, sulphur and

A. Glycerine

B. Salt petre

C. Nitro glycerine

D. Dynamite

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Naphthols are derivates of

A. Methyl amine

B. Naphthalene

C. Phenol

D. Xylene

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The product obtained on mixing calcium oxide with water is called

A. Quicklime

B. Slaked lime

C. Milk of lime

D. None of these

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Silicone is a/an

A. Thermoplastic

B. Inorganic polymer

C. Monomer

D. None of these

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Magnesium and calcium __________ cause temporary hardness of water.

A. Carbonates

B. Bicarbonates

C. Phosphates

D. Sulphates

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Which glass is usually used in optical work?

A. Lead glass

B. High silica (borosilicate) glass

C. Photo-sensitive glass

D. Fibre glass

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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

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One of the steps during refining of cane sugar consists of addition of hydrated lime to the sugar syrup followed by carbonation of the resulting solution. The purpose of this step is to

A. Adjust the pH of the syrup

B. Remove the coloring matter from the syrup

C. Reduce the viscosity of the syrup

D. Improve the rate of crystallisation of sugar

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SO2 is bubbled through hot sugar cane juice to

A. Act as an acidifying agent

B. Increase its concentration

C. Increase the amount of molasses

D. Increase the crystal size

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Styrene-butadiene-rubber (SBR) as compared to natural rubber has

A. Poorer tensile strength

B. Poorer resistance to oxidation

C. Greater amount of heat build-up under heavy loading

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

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For the hydrogenation of oils, (i) is commonly used as catalyst and (ii) is a catalyst poison.

A. (i) platinum (ii) sulphur

B. (i) palladium (ii) oxygen

C. (i) nickel (ii) sulphur

D. (i) nickel (ii) oxygen

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Accepted Answer

C. Give elasticity & prevent cracking of the film

Plasticisers are added to paints to

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Cumene is the starting material for the production of

What products do we get on electrolysis of saturated brine using steel cathode and graphite anode in an electrolytic cell?

Comparing sulphate process with sulphite process, we find that __________ in the later.

In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the

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

Portland cement consists mainly of

Which of the following processes can remove both temporary as well as permanent hardness of water?

__________ acid is an unsaturated fatty acid.

Solvay process is not used for the manufacture of potassium carbonate, because of the reason that potassium bicarbonate

The type of high refractive index glass used in optical instruments is __________ glass.

Co-efficient of thermal expansion of glass is decreased by the addition of __________ during its manufacture.

Molecular weight of plastics ranges from

RDX (an explosive), which is more sensitive but less toxic than TNT, is chemically

During the absorption of HCl gas in water (to produce liquid HCl), the gas is kept above dew point to

Washing soda is chemically represented by

__________ glass is used for the manufacture of optical glass.

Platinum is a versatile catalyst for many processes in chemical industries. It is highly prone to be poisoned by the presence of

Concentration of NaOH solution produced by diaphragm electrolytic cell is about __________ percent.

Riboflavin is a/an

Gun powder, which is an explosive comprises of charcoal, sulphur and

Naphthols are derivates of

The product obtained on mixing calcium oxide with water is called

Silicone is a/an

Magnesium and calcium __________ cause temporary hardness of water.

Which glass is usually used in optical work?

Pick out the wrong statement.

One of the steps during refining of cane sugar consists of addition of hydrated lime to the sugar syrup followed by carbonation of the resulting solution. The purpose of this step is to

SO2 is bubbled through hot sugar cane juice to

Styrene-butadiene-rubber (SBR) as compared to natural rubber has

For the hydrogenation of oils, (i) is commonly used as catalyst and (ii) is a catalyst poison.

Also checkout

Plasticisers are added to paints to

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Cumene is the starting material for the production of

What products do we get on electrolysis of saturated brine using steel cathode and graphite anode in an electrolytic cell?

Comparing sulphate process with sulphite process, we find that __________ in the later.

In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the

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

Portland cement consists mainly of

Which of the following processes can remove both temporary as well as permanent hardness of water?

__________ acid is an unsaturated fatty acid.

Solvay process is not used for the manufacture of potassium carbonate, because of the reason that potassium bicarbonate

The type of high refractive index glass used in optical instruments is __________ glass.

Co-efficient of thermal expansion of glass is decreased by the addition of __________ during its manufacture.

Molecular weight of plastics ranges from

RDX (an explosive), which is more sensitive but less toxic than TNT, is chemically

During the absorption of HCl gas in water (to produce liquid HCl), the gas is kept above dew point to

Washing soda is chemically represented by

__________ glass is used for the manufacture of optical glass.

Platinum is a versatile catalyst for many processes in chemical industries. It is highly prone to be poisoned by the presence of

Concentration of NaOH solution produced by diaphragm electrolytic cell is about __________ percent.

Riboflavin is a/an

Gun powder, which is an explosive comprises of charcoal, sulphur and

Naphthols are derivates of

The product obtained on mixing calcium oxide with water is called

Silicone is a/an

Magnesium and calcium __________ cause temporary hardness of water.

Which glass is usually used in optical work?

Pick out the wrong statement.

One of the steps during refining of cane sugar consists of addition of hydrated lime to the sugar syrup followed by carbonation of the resulting solution. The purpose of this step is to

SO2 is bubbled through hot sugar cane juice to

Styrene-butadiene-rubber (SBR) as compared to natural rubber has

For the hydrogenation of oils, __________ (i) __________ is commonly used as catalyst and __________ (ii) __________ is a catalyst poison.

Also checkout

For the hydrogenation of oils, (i) is commonly used as catalyst and (ii) is a catalyst poison.