MCQ
The shape of ethylene molecule is
- ASquare planar
- BFuran
- ✓Trigonal planar
- DTetrahedral
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$2Na(s) + 2HCl(g)\,\, \to \,\,2NaCl(s) + {H_2}(g),$$\Delta H = - 152\,kcal$ For the reaction $Na(s) + \frac{1}{2}C{l_2}(g)\,\, \to \,\,NaCl(s),\,\Delta H = $ .....$kcal$