MCQ
The reaction, $C{H_3}Br + Na \to {\rm{Product}}$, is called
- APerkin reaction
- BLevit reaction
- ✓Wurtz reaction
- DAldol condensation
$C{H_3}Br + 2Na + BrC{H_3} \to \mathop {{C_2}{H_6}}\limits_{{\rm{ethane}}} + 2NaBr$
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Reason : Phosphorus has lower electronegativity than nitrogen.
$Si_2H_6(g)\,\,+\,\,H_2(g)\,\,\to \,\, 2SiH_4(g),\,\,\Delta H\,\,=\,\,-\,11.7\,\,kJ/mol$
$SiH_4(g)\,\,\to \,\,SiH_2(g)\,\,+\,\,H_2(g),\,\, \Delta H\,\,=\,\,+239.7\,\,kJ/mol$
$\Delta H_f^o\,\,Si_2H_6(g)\,\,=\,\,80.3\,\,kJ/mol$
......$kJ/mol$
