\( \mathrm{H}_{3} \mathrm{PO}_{2} \) की भास्मिकता है : (A) 1 (B) 3 (C) 2 (D) अम्लीय नहीं है

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\( \mathrm{H}_{3} \mathrm{PO}_{2} \) की भास्मिकता है :
(A) 1
(B) 3
(C) 2
(D) अम्लीय नहीं है
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