MCQ
Which is correct oxidation state of lead
- ✓$+ 2$, $+ 4$
- B$+ 1$, $+ 2$
- C$+ 3$, $+ 4$
- D$4$
$+2$ oxidation state which is lower oxidation state due to inert pair effect(stable oxidation state for lead).
$+4$ oxidation state which is Higher oxidation state
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At what value of $(n)$ given compound will not evolve $CO_2$ gas ?
$C(g) + 4H(g) \to C{H_4}(g),\,\Delta H = - {x_1}\,k\,cal$
$C{H_4}(g) \to C{H_3}(g) + H(g),\,\Delta H = + y\,k\,cal$
The bond energy of $C - H$ bond is
