The end bleaching agent used to move last traces of colour bodies from the pulp is ____________________?

Question: In multistage equilibrium conversion of SO2 to SO3 (2SO2 + O2 2SO3), the reverse reaction becomes appreciable at a temperature of 550° C. The percentage equilibrium conversion of SO2 to SO3 can be increased by
[A].

increasing the oxygen concentration.

[B].

putting more quantity of V2O5 catalyst in the converter.

[C].

removing some quantity of SO3 during intermediate stage.

[D].

maintaining low temperature & pressure in the converter.

Answer: Option C

Explanation:

No answer description available for this question.

Question: Manufacture of phthalic anhydride uses __________ as a catalyst.
[A].

Ni

[B].

Cr

[C].

V2O5

[D].

Al2O3

Answer: Option C

Explanation:

No answer description available for this question.

Question: Free alkali in a toilet soap is __________ that in a laundary shop.
[A].

less than

[B].

more than

[C].

same

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.