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Chemical Engineering - Chemical Process

Exercise : Chemical Process - Section 7
11.
Function of sodium thiosulphate (hypo) in development of photographic film/plate is to
brighten the faint images.
remove metallic silver.
convert silver chloride to silver.
remove unexposed silver halide.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
High temperature carbonisation of coal takes place at __________ °C.
2000
700
1100
< 500
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
White phosphorous is stored under water, because
it does not react with water.
it is poisonous.
its kindling temperature in dry air is very low.
it is unstable.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
__________ is not a constituent of gun powder.
Carbon
Charcoal
Sulphur
Potassium nitrate
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
Hydrophilic group of a soap or detergent solution is
water hating
soil loving
water loving
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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