MCQ
Which atom can have more than eight valence electrons when it is forming covalent bonds?
- A$H$
- B$N$
- C$F$
- D$Cl$
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$(i)$ forms aldehydes on ozonolysis followed by the hydrolysis.
$(ii)$ when vaporized completely $1.53\, \mathrm{~g}$ of $\mathrm{A}$, gives $448\, \mathrm{~mL}$ of vapour at $STP.$
The number of carbon atoms in a molecule of compound $A$ is ...... .
Statement $(I)$ : Both metal and non-metal exist in $\mathrm{p}$ and $d$-block elements.
Statement $(II)$ : Non-metals have higher ionisation enthalpy and higher electronegativity than the metals.
In the light of the above statements, choose the most appropriate answer from the option given below: