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Chemical Engineering - Chemical Process

Exercise : Chemical Process - Section 12
31.
For the hydrogenation of oils __________ (A) __________ is commonly used as catalyst and __________ (B) __________ is a catalyst poison.
(A) platinum (B) sulphur
(A) palladium (B) oxygen
(A) nickel (B) sulphur
(A) nickel (B) oxygen
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
Main constituents of natural rubber is
polystyrene
polyisoprene
polybutadiene
polychloroprene
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
Highly porous refractory bricks are
less susceptible to chemical attack by molten fluxes and gases etc.
very strong.
having very high thermal conductivity.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
Fumigant insecticides
kill insects, when they eat it.
emit poisonous vapour.
are absorbed throughout the plant.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
Which of the following is an endothermic reaction ?
Absorption of SO3 in 98% H2SO4.
C + H2O = CO + H2.
Thermal dissociation of iron pyrites.
Both (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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