MCQ
Correct configuration of $F{e^{ + 3}}$ $[26] $ is
- ✓$1{s^2},2{s^2}2{p^6},3{s^2}3{p^6}3{d^5}$
- B$1{s^2},2{s^2}s{p^6},3{s^2}3{p^6}3{d^3},4{s^2}$
- C$1{s^2},2{s^2}2{p^6},3{s^2}3{p^6}3{d^6},4{s^2}$
- D$1{s^2},2{s^2}2{p^6},3{s^2}3{p^6}3{d^5},4{s^1}$
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$\mathop {C{H_2} = C{H_2}}\limits_{(I)} $ $\mathop {C{H_3} - CH = C{H_2}}\limits_{(II)} $ (figure) $\mathop {C{H_2} = CH - Cl}\limits_{(IV)} $
${N_2}{O_4}(g)\, \to \,2N{O_2}(g)$
Data for the given reaction is
$\Delta H = +54\,kJ$ and $E_a = + 57.2\,kJ$
.......$kJ$