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Class 10
Solutions to CBSE Sample Paper - Science Class 10

The function of KOH is to absorb  

(A) Oxygen. 

(B) Carbon dioxide. 

(C) Moisture. 

(D) Sunlight. 


Answer - 

The potassium hydroxide absorbs the carbon dioxide liberating in the reaction and forms the potassium carbonate K 2 CO 3 .

Reaction of Potassium Hydroxide and Carbon Dioxide-01.jpg

So, the correct answer is (b)  

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CA Maninder Singh is a Chartered Accountant for the past 13 years and a teacher from the past 17 years. He teaches Science, Economics, Accounting and English at Teachoo