MCQ
Correct order of bond length is
- ✓$CO_3^{2 - } > C{O_2} > CO$
- B$C{O_2} > CO > CO_3^{2 - }$
- C$CO > C{O_2} > CO_3^{2 - }$
- DNone of these
i.e. $:\mathop C\limits^ - \equiv \mathop O\limits^ + :$ is $3,$ that of $O = C = O$ is $2$
while that of $CO_3^{2 - }$ ion is $1.33.$
Since the bond length increases as the bond order decreases, i.e. $CO < C{O_2} < CO_3^{2 - }$.
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| Element | $IE_1$ | $IE_2$ | $IE_3$ | $IE_4$ |
| $W$ | $10.5$ | $15.5$ | $24.9$ | $79.8$ |
| $X$ | $8$ | $14.8$ | $78.9$ | $105.8$ |
Other two elements $Y$ and $Z$ have outer electronic configuration $ns^2$ $np^4$ and $ns^2$ $np^5$ respectively. According to given information which of the following compound $(s)$ is/are not possible
$(a)\, W_2Y_3\, (b)\, X_2Y_3\, (c)\, WZ_2\, (d)\, XZ_2$