MCQ
Which of the following are isoelectronic and isostructural $NO_3^ - ,\,CO_3^{2 - },\,ClO_3^ - ,\,S{O_3}$
- ✓$NO_3^ - ,\,CO_3^{2 - }$
- B$S{O_3},\,NO_3^ - $
- C$ClO_3^ - ,\,CO_3^{2 - }$
- D$CO_3^{2 - },\,S{O_3}$
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$Si_2H_6(g)\,\,+\,\,H_2(g)\,\,\to \,\, 2SiH_4(g),\,\,\Delta H\,\,=\,\,-\,11.7\,\,kJ/mol$
$SiH_4(g)\,\,\to \,\,SiH_2(g)\,\,+\,\,H_2(g),\,\, \Delta H\,\,=\,\,+239.7\,\,kJ/mol$
$\Delta H_f^o\,\,Si_2H_6(g)\,\,=\,\,80.3\,\,kJ/mol$
......$kJ/mol$