The 'volume strength' of \( 1.5 \mathrm{NH}_{2} \mathrm{O}_{2} \) solution is: (A) 4 (B) \( 8.4 ...

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The 'volume strength' of \( 1.5 \mathrm{NH}_{2} \mathrm{O}_{2} \) solution is:
(A) 4
(B) \( 8.4 \)
(C) \( 3.0 \)
(D) \( 8.0 \)
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