question_answer

Read the given passage and fill in the blanks by choosing an appropriate option.

When a limited quantity of water is sprinkled over a dirty white stone called ___i___, an ___ii___ reaction takes place. After some time, the stone like substance changes into white amorphous powder called, ___iii___ which is used for ___iv___.

 

A)

(i)	(ii)	(iii)	(iv)
Plaster of Pairs	Exothermic	Quick lime	Medical purposes

               

B)

(i)	(ii)	(iii)	(iv)
Quick lime	Exothermic	Slaked lime	White washing

               

C)

(i)	(ii)	(iii)	(iv)
Sodium bicarbonate	Endothermic	Sodium carbonate	Baking

               

D)

(i)	(ii)	(iii)	(iv)
Calcium carbonate	Endothermic	Calcium oxide	White washing