Physics, asked by amitkr91, 1 year ago

55,
| (1) 7 से कम
Conversion of (Na2CO3,10H20) to NaCO3 H2O on exposure to air is called
(a) Effervescence
(c) Fluorescence
(b) Efflorescence
वायु की उपस्थिति में Na, CO. 10 II,() को Na, CO. 1,0 में परिवर्तन की क्रिया को कहते हैं।
(d) Luminescence.
(a) फरमेसेन्स
(b) इफलॉरेसेन्स
(c) फ्लोरेसेन्स
(d) लुमिनिसेन्स

Answers

Answered by ShraddhaSelvaraj
1

Na2CO3.10H20 loses water molecule on exposure to air and is called EFFLORESENCE. (B) is correct.

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