Question

$\begin{array}{cc}List-I& List-II\\ \text{(I) 8 g - atoms of Hydrogen}& \text{(P) 2 moles}{C}_3{H}_4\\ \text{(II) 6 g-atoms of Carbon}& \text{(Q) 3 moles}C{H}_{3}COOH\\ \text{(III) 6 g - atoms of Oxygen}& \text{(R) 2 moles}\stackrel{\stackrel{O}{||}}{N{H}_2-C-N{H}_2}\\ \left(IV\right)\text{4 g-molecules of Nitrogen}& \text{(S) 4 moles}{N}_2{H}_2\\ & \text{(T) 2 moles}{N}_2{O}_3\\ & \text{(U) 2 mole}C{H}_4\end{array}$

• A. (I) P, R (II) P, S (III) P, S (IV) S, U
• B. (I) P, R, S, U (II) P, Q (III) Q, T (IV) S
• C. (I) P, Q, R (II) P, S (III) Q, T (IV) P
• D. (I) P, Q, S (II) P, R (III) Q, S, U (IV) Q

Answer 1

The correct option is B (I) P, R, S, U (II) P, Q (III) Q, T (IV) S

(P) 2 moles of $C_3{H}_4$ has 6 moles of C-atoms and 8 moles of H-atoms
(Q) 3 moles of $C{H}_{3}COOH$ has 6 moles of C-atoms, 12 moles of H-atoms and 6 moles of O-atoms
(R) 2 moles of $\stackrel{\stackrel{O}{||}}{N{H}_2-C-N{H}_2}$ has 2 moles of C-atoms, 4 moles of N-atoms, 8 moles of H-atoms, and 2 moles of O atoms.

(S) 4 moles of $N_2{H}_2$ has 8 moles of N-atoms and 8 moles of H-atoms

(T) 2 moles of $N_2{O}_3$ has 4 moles of N-atoms and 6 moles of O-atoms

(U) 2 moles of $C{H}_4$ has 8 moles of H-atoms and 2 moles of C-atoms