A) 25
B) 49
C) 59
D) 98
Correct Answer: D
Solution :
Molecular weight of \[{{H}_{3}}P{{O}_{4}}\] is 98 and change in its valency = 1 equivalent wt. of \[{{H}_{3}}P{{O}_{4}}\] \[=\frac{\text{Molecular}\,\text{weight}}{\text{Change}\,\,\text{in}\,\,\text{valency}}=\frac{98}{1}=98\].
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