The number of water molecules in gypsum, dead bump plaster and plaster of Paris, respectively are: (A) 5, 0 and 0.5 (B) 0.5, 0 and 2 (C) 2, 0 and 1 (D) 2, 0 and 0.5 ty v.kqvksa dh la[;k ftIle] e`r rkf

Question

The number of water molecules in gypsum, dead bump plaster and plaster of Paris, respectively are:

(A) 5, 0 and 0.5
(B) 0.5, 0 and 2
(C) 2, 0 and 1
(D) 2, 0 and 0.5 ty v.kqvksa dh la[;k ftIle] e`r rkfir IykLVj rFkk IykLVj vkWQ isfjl esa Øe'k% gS% (1) 5, 0 rFkk 0.5 (2) 0.5, 0 rFkk 2 (3) 2, 0 rFkk 1 (4) 2, 0 rFkk 0.5

Prashant Kotian · Accepted Answer

Correct answer: D. Gypsum = CaSO4·2H2O Plaster of paris (POP) = CaSO4· 1 H2O Dead burnt of plaster = CaSO4

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