P-Block Elements Ques 495

Question: The most efficient agent for the absorption of $ SO_3 $ is

[BHU 2004; DPMT 2004]

Options:

A) $ 80%\ H_2SO_4 $

B) $ 98%\ H_2SO_4 $

C) $ 50%\ H_2SO_4 $

D) $ 20%\ H_2S_2O_7 $

Show Answer

Answer:

Correct Answer: B

Solution:

98% $ H_2SO_4 $ is used for absorbing dense fog of acid which is formed by dissolving $ SO_3 $ in water. Hence 98% $ H_2SO_4 $ is the most efficient agent for the absorption of $ SO_3 $ .



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