Chemical Engineering - Chemical Process

31.
Sulphur addition in soap is done to
improve the soap texture.
cure pimples & dandruff.
fasten lather formation.
increase its cleansing action.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

32.
Phosphate rock is a raw material for the manufacture of
phosphoric acid
phosphorous
superphosphates
all (a), (b) and (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.

33.
Mineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm oil, olive oil etc.) as a lubricant due to its
poor oxidation stability and high gum forming tendency.
greater tendency of decomposition at elevated temperature.
hydrolysis tendency in presence of water.
all (a), (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.

34.
Which of the following is not a raw material used for the manufacture of ordinary glass?
Iron oxide
Soda ash
Limestone
Silica
Answer: Option
Explanation:
No answer description is available. Let's discuss.

35.
Esterification reaction
produces soap.
is reversible.
is a reaction between an alcohol and an organic acid.
all (a), (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.