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Chemical Engineering MCQs with Explanations

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1601Chemical EngineeringMedium

Those solutions in which there is no volume change upon mixing the components in the liquid state and which, when diluted do not undergo any heat change (i.e. heat of dilution is zero), are called ________ solutions?

AReal

BIsotonic

CNone of these

DIdeal

Correct answer

D. Ideal

Explanation

The correct answer is Ideal.

1602Chemical EngineeringMedium

Chemical formula of biuret is________?

ANH2.CO.NH2

BNH4COONH2

CNH2CONHCONH2

DNH3.COO.NH3

Correct answer

C. NH2CONHCONH2

Explanation

The correct answer is NH2CONHCONH2.

1603Chemical EngineeringMedium

Temperature during hydrogenation of oil should not be more than 200°C, otherwise it will result in________?

ASintering of porous catalyst

BHydrogen embrittlement

CAll A, B. and C.

DPyrolysis of oil

Correct answer

C. All A, B. and C.

Explanation

The correct answer is All A, B. and C..

1604Chemical EngineeringMedium

H4P2O7 is the chemical formula of ________ phosphoric acid?

ANone of these

BOrtho

CMeta

DPyro

Correct answer

D. Pyro

Explanation

The correct answer is Pyro.

1605Chemical EngineeringMedium

1 centistoke is equal to ________ Redwood I seconds?

A40.8

B0.408

C4.08

Correct answer

C. 4.08

Explanation

The correct answer is 4.08.

1606Chemical EngineeringMedium

Copper is dissolved from its ore by H2SO4 in a percolation tank made of________?

AStainless steel

BHigh silicon iron (14% Si)

CReinforced concrete lined with lead

DWood

Correct answer

C. Reinforced concrete lined with lead

Explanation

The correct answer is Reinforced concrete lined with lead.

1607Chemical EngineeringMedium

Yeast is used in the manufacture of ________?

AWine

BAntibiotics

CPenicillin

DPasteurised milk

Correct answer

A. Wine

Explanation

The correct answer is Wine.

1608Chemical EngineeringMedium

The ratio of volumes of the mixed reactor to the plug flow reactor (for identical feed composition, flow rate, conversion, and for all positive reaction orders) is always?

AEqual to the order of reaction

Correct answer

B. 1

Explanation

The correct answer is 1.

1609Chemical EngineeringMedium

Eschka mixture, which is used for the determination of sulphur in coal, is a mixture of ________?

AMgSO4 & BaCl2

BMgCO3 & NaCl

CMgO & Na2CO3

DBaSO4 & NaCl

Correct answer

C. MgO & Na2CO3

Explanation

The correct answer is MgO & Na2CO3.

1610Chemical EngineeringMedium

The ideal pulp for the manufacture of paper should have high ________ content?

ANone of these

BCellulose

CBoth A. & B.

DLignin

Correct answer

B. Cellulose

Explanation

The correct answer is Cellulose.

1601Chemical EngineeringMedium

Those solutions in which there is no volume change upon mixing the components in the liquid state and which, when diluted do not undergo any heat change (i.e. heat of dilution is zero), are called ________ solutions?

AReal

BIsotonic

CNone of these

DIdeal

Correct answer

D. Ideal

Explanation

The correct answer is Ideal.

1602Chemical EngineeringMedium

Chemical formula of biuret is________?

ANH2.CO.NH2

BNH4COONH2

CNH2CONHCONH2

DNH3.COO.NH3

Correct answer

C. NH2CONHCONH2

Explanation

The correct answer is NH2CONHCONH2.

1603Chemical EngineeringMedium

Temperature during hydrogenation of oil should not be more than 200°C, otherwise it will result in________?

ASintering of porous catalyst

BHydrogen embrittlement

CAll A, B. and C.

DPyrolysis of oil

Correct answer

C. All A, B. and C.

Explanation

The correct answer is All A, B. and C..

1604Chemical EngineeringMedium

H4P2O7 is the chemical formula of ________ phosphoric acid?

ANone of these

BOrtho

CMeta

DPyro

Correct answer

D. Pyro

Explanation

The correct answer is Pyro.

1605Chemical EngineeringMedium

1 centistoke is equal to ________ Redwood I seconds?

A40.8

B0.408

C4.08

Correct answer

C. 4.08

Explanation

The correct answer is 4.08.

1606Chemical EngineeringMedium

Copper is dissolved from its ore by H2SO4 in a percolation tank made of________?

AStainless steel

BHigh silicon iron (14% Si)

CReinforced concrete lined with lead

DWood

Correct answer

C. Reinforced concrete lined with lead

Explanation

The correct answer is Reinforced concrete lined with lead.

1607Chemical EngineeringMedium

Yeast is used in the manufacture of ________?

AWine

BAntibiotics

CPenicillin

DPasteurised milk

Correct answer

A. Wine

Explanation

The correct answer is Wine.

1608Chemical EngineeringMedium

The ratio of volumes of the mixed reactor to the plug flow reactor (for identical feed composition, flow rate, conversion, and for all positive reaction orders) is always?

AEqual to the order of reaction

Correct answer

B. 1

Explanation

The correct answer is 1.

1609Chemical EngineeringMedium

Eschka mixture, which is used for the determination of sulphur in coal, is a mixture of ________?

AMgSO4 & BaCl2

BMgCO3 & NaCl

CMgO & Na2CO3

DBaSO4 & NaCl

Correct answer

C. MgO & Na2CO3

Explanation

The correct answer is MgO & Na2CO3.

1610Chemical EngineeringMedium

The ideal pulp for the manufacture of paper should have high ________ content?

ANone of these

BCellulose

CBoth A. & B.

DLignin

Correct answer

B. Cellulose

Explanation

The correct answer is Cellulose.