Chemical Engineering Mcqs

____________ is a polysaccharide?

• (A)  Maltose
• (B)  Starch
• (C)  Sucrose
• (D)  Glucose

Answer

Submitted By :Ali Uppal

Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulfonic acid produces sodium dodecylbenzene sulphate, which is a/an?

• (A)  Explosive
• (B)  Soap
• (C)  Detergent
• (D)  Analgesic drug

Answer

Submitted By :Ali Uppal

Superior quality laboratory apparatus is made of the _____________ glass having low thermal co-efficient of expansion & high chemical resistance?

• (A)  Flint
• (B)  Soda
• (C)  Pyrex
• (D)  Potash

Answer

Submitted By :Ali Uppal

Conversion of SO2 to SO3 in Monsanto 4-pass converter is about ____________________ percent?

• (A)  80
• (B)  90
• (C)  98
• (D)  100

Answer

Submitted By :Ali Uppal

Styrene is produced from ethyl benzene by the process of__________________?

• (A)  Dehydrogenation
• (B)  Oxidation
• (C)  Alkylation
• (D)  Dehydration

Answer

Submitted By :Ali Uppal

Calcination of gypsum produces__________________?

• (A)  Plaster of Paris
• (B)  Salt cake
• (C)  Nitre cake
• (D)  Lime

Answer

Submitted By :Ali Uppal

Which is the most efficient absorbent for SO3 out of the following ?

• (A)  20% oleum
• (B)  65% oleum
• (C)  78% H2SO4
• (D)  98% H2SO4

Answer

Submitted By :Ali Uppal

DDT should not be allowed to come in contact with iron (during its manufacture) to _______________?

• (A)  Avoid its decomposition
• (B)  Prevent sulphonation of the monochlorobenzene by the acid catalyst
• (C)  Achieve non-hygroscopic property
• (D)  None of these

Answer

Submitted By :Ali Uppal

______________ are added in lacquers to remove film brittleness and to improve adhereness?

• (A)  Film forming materials
• (B)  Plasticisers
• (C)  Diluents
• (D)  Solvents

Answer

Submitted By :Ali Uppal

10% oleum comprises of 10% free_________________?

• (A)  SO2
• (B)  H2SO3
• (C)  SO3
• (D)  H2SO4

Answer

Submitted By :Ali Uppal