MCQ
Most stable carbocation is
- A$C{H_3} - \mathop C\limits^ \oplus {H_2}$
- B$Ph - \mathop C\limits^ \oplus {H_2}$
- C$\mathop C\limits^ \oplus {H_2}C{H_2}Cl$
- ✓$\mathop C\limits^ \oplus {H_2} - OC{H_3}$

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${A_2}B(g) \to {A_2}(g) + B(g);\,\,\,\Delta {H^o} = 40\,kJ/mol$
${A_2}B(g) \to A(g) + AB(g);\,\,\,\Delta {H^o} = 50\,kJ/mol$
.....$ kJ/mol$
$CH_4\, _{( g )}+4 Cl _{2}\,_{( g )} \rightarrow CCl _{4}\,_{( l )}+4 HCl\,_ {( g )}$
