MCQ
How many mole of electrons are needed to convert one mole of nitrate ion to hydrazine ?
- A$8$
- ✓$7$
- C$5$
- D$3$
$2 \mathrm{N}^{5+}+14 \mathrm{e}^{-} \longrightarrow 2 \mathrm{N}^{2-}$
$\mathrm{N}^{5+}+7 \mathrm{e} \longrightarrow \frac{1}{2}\left[\mathrm{N}_{2} \mathrm{H}_{4}\right]$
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$(1)$ $BeCl _2, CO _2, BCl _3, CHCl _3$
$(2)$ $SO _2, C _6 H _5 Cl , H _2 Se , BrF _5$
$(3)$ $BF _3, O _3, SF _6, XeF _6$
$(4)$ $NO _2, NH _3, POCl _3, CH _3 Cl$
$A + B$ $\rightleftharpoons$ $C + D$ + heat
has reached equilibrium. The reaction may be made to proceed forward by