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Chemical Engineering - Chemical Process

Exercise : Chemical Process - Section 2
31.
Vulcanisation of rubber
decreases its tensile strength.
increases its ozone & oxygen reactivity.
increases its oil & solvent resistance.
converts its plasticity into elasticity.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
Raw materials for 'Solvay Process' for manufacture of the soda ash are
salt, limestone and coke or gas.
ammonia, salt and limestone.
ammonia limestone and coke.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
Chloral is used in the manufacture of
DDT
BHC
parathion
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
Bromine is used in the preparation of
fire extinguishing compounds.
fire proofing agents.
dyes and antiknock compounds.
all (a), (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
Sudden temperature fluctuation does not affect pyrex glass, because of its
low co-efficient of expansion.
high co-efficient of expansion.
high melting point.
both (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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