When \[7.1gm\,N{{a}_{2}}S{{O}_{4}}\] (molecular mass 142) dissolves in \[100\,ml\,{{H}_{2}}O\], the molarity of the solution is [CBSE PMT 1991; MP PET 1993, 95]

When \[7.1gm\,N{{a}_{2}}S{{O}_{4}}\] (molecular mass 142) dissolves in

1.	When \[7.1gm\,N{{a}_{2}}S{{O}_{4}}\] (molecular mass 142) dissolves in \[100\,ml\,{{H}_{2}}O\], the molarity of the solution is [CBSE PMT 1991; MP PET 1993, 95]
A.	2.0 M
B.	1.0 M
C.	0.5 M
D.	0.05 M
Answer» D. 0.05 M

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When \[7.1gm\,N{{a}_{2}}S{{O}_{4}}\] (molecular mass 142) dissolves in \[100\,ml\,{{H}_{2}}O\], the molarity of the solution is [CBSE PMT 1991; MP PET 1993, 95]

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