Rancidity of the fatty oil can be reduced by its__________________?

Question: Hard water
[A].

does not affect the lather formation by soap.

[B].

is not unfit for drinking purpose.

[C].

pollutes the water stream.

[D].

all (a), (b) and (c).

Answer: Option B

Explanation:

No answer description available for this question.

Question: More than 100 percent of __________ is present in oleum.
[A].

SO3

[B].

H2SO4

[C].

H2SO3

[D].

SO2

Answer: Option B

Explanation:

No answer description available for this question.

Question: The catalyst used in the manufacture of DDT is
[A].

alumina.

[B].

silica.

[C].

20% oleum.

[D].

aluminium chloride.

Answer: Option C

Explanation:

No answer description available for this question.

Question: Main use of liquid nitrogen is in
[A].

rocket propulsion.

[B].

making gun powder.

[C].

detergent manufacture.

[D].

refrigerative cooling.

Answer: Option D

Explanation:

No answer description available for this question.