Online Chemical Engineering Test - Chemical Process Test 1

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Total number of questions: 20.
Time allotted: 30 minutes.
Each question carries 1 mark; there are no negative marks.
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1.

Which of the following sugars is the sweetest?

Glucose

Fructose

Sucrose

Lactose

[#]

2.

Which of the following is not produced on commercial scale from sea water?

Bromine.

Magnesium compounds.

Potassium compounds.

Sodium sulphate.

[#]

3.

Phenol formaldehyde resin is used as an adhesive in making

laminates

card boxes

furniture

books

[#]

4.

Solvent extracted oil

has low free fatty acid content.

is odourless.

has more of unsaturates.

none of these.

[#]

5.

Mannheim furnace is used in the manufacture of

hydrochloric acid.

H₂SO₄ by Chamber process.

calcium carbide.

corundum.

[#]

6.

Bromides contained in hot mother liquor is treated with __________ during manufacture of bromine from sea water.

SO₃

Cl₂

NH₃

SO₂

[#]

7.

Saponification number of an oil or fat

gives an idea about its molecular weight.

is inversely proportional to its molecular weight.

detects its adulteration.

all (a), (b) & (c).

[#]

8.

Fatty material used in soap making is

fatty acid

fatty alcohols

tallow

detergents

[#]

9.

Which of the following is a disacchride ?

Sucrose

Glucose

Starch

Carbohydrate

[#]

10.

Main constituents of portland cement are calcium aluminate and

gypsum

silicates

sodium silicate

carbonates

[#]

11.

Pick out the wrong statement pertaining to nitric acid.

About 90% of nitric acid is manufactured by Ostwald's process.

It is a strong mono basic acid which reacts with almost all the metals except noble metals.

Yellow color of impure nitric acid is because of dissolved oxides of nitrogen (mainly NO₂).

Arc process of nitric acid manufacture is economical as compared to Ostwald's process.

[#]

12.

Glauber's salt is chemically represented by

Na₂SO₄.10H₂O

CaCl(OCl)

CaSO₄.H₂O

(NH₄)₂SO₄

[#]

13.

__________ is a polysacchride.

Maltose

Starch

Sucrose

Glucose

[#]

14.

Saponification value/number of an oil or fat is a measure of its

fatty acid content.

degree of unsaturation of the fatty acids present in it.

average molecular weight.

insoluble fatty acid content.

[#]

15.

During the manufacture of sulphuric acid, the temperature of molten sulphur is not increased beyond 160°C, as

it is very corrosive at elevated temperature.

its viscosity is not reduced on further heating (hence pressure drop on pumping it, cannot be further reduced).

it decomposes on further increasing the temperature.

none of these.

[#]

16.

In the production of soda ash by Solvay process, the by-product is

CaCl₂

NH₄Cl

NH₃

NaOH

[#]

17.

Ethanol amine is produced using ammonia and

ethyl benzene

ethylene oxide

ethanol

ethane

[#]

18.

Na₂CO₃ is called

washing soda

soda ash

plaster of paris

calcite

[#]

19.

Bleaching powder (chemically known as calcium chloro hypochlorite) is commercially produced by the action of chlorine on

slaked lime

soda lime

calcium perchlorate

none of these

[#]

20.

Main constituent of limestone is

CaCO₃

MgCO₃

Na₂CO₃

CaSO₄

[#]

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