MCQ
Positive charge in an atom is :
- Ascattered all over the atom
- ✓Concentrated in the nucleus
- CRevolving around the nucleus
- DNone is true
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${H_2}C = C{H_2}(g) + {H_2}(g) \to {H_3}C - C{H_3}(g)$ at $298 \,K$ will be ....$kJ$
$n = 3, l = 1, m_l = 0$
