The number of milliequivalents of Mg(OH)2in its 5.8 g are :
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a
100
b
200
c
400
d
600
answer is B.
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Detailed Solution
Mg(OH)2 ⇌ Mg2++2OH−1 mol 2 molEq. wt. of Mg(OH)2= Mol. wt. of Mg(OH)22 =24+2(16+1)2=582=29∴ M. eq. of Mg(OH)2= wt. Eg wt t×1000=5.829×1000 = 200So, the correct answer is (b).