निम्नलिखित में प्लास्टर आफ पेरिस कौन हैं ?
(क) (CaSO4)2 . H2O
(ख) CaSO4 . 1/2 H2O
(ग) ‘क’ और ‘ख’ दोनों
(घ) CaSO4 . 2H2 O
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Explanation:
The chemical name of Plaster of Paris is
Calcium sulphate hemihydrate because half molecule of water is attached with calcium sulphate. The chemical formula of plaster of Paris is is CaSO4. 1/2H2O.
correct option is C
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