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
Correct Answer: B
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