The solution having lowest molar concentration is: (A) \( 1.0 \mathrm{NHCl} \) (B) \( 0.4 \mathr...

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The solution having lowest molar concentration is:
(A) \( 1.0 \mathrm{NHCl} \)
(B) \( 0.4 \mathrm{NH}_{2} \mathrm{SO}_{4} \)
(C) \( 0.1 \mathrm{~N} \mathrm{Na}_{2} \mathrm{CO}_{3} \)
(D) none of these
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