MCQ
Correct order of Atomic radius
- A$Be > Li > B > C$
- B$N > O > C > B$
- C$P > Si > Mg > Na$
- ✓$I > P > S > Cl$
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${C_{(gr)}} + {O_{2(g)}} \to C{O_{2(g)}}\,\,\,\Delta H = x\,kJ/mol$
${C_{(gr)}} + \frac{1}{2}{O_{2(g)}} \to C{O_{(g)}}\,\,\,\Delta H = y\,kJ/mol$
$C{O_{(g)}} + \frac{1}{2}{O_{2(g)}} \to C{O_2}_{(g)}\,\,\,\Delta H = z\,kJ/mol$
$A$. $\mathrm{Ar}$ $B$. $\mathrm{Br}$ $C. F$ $D$. $\mathrm{S}$
Choose the most appropriate from the options given below: