MCQ
The $3^{rd}$ ionisation energy amongst $Li, Be, B$ and $C$ is lowest for
- A$Li$
- B$Be$
- ✓$B$
- D$C$
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Assertion $A:$ Butan$-1-$ol has higher boiling point than ethoxyethane.
Reason $R:$ Extensive hydrogen bonding leads to stronger association of molecules.
In the light of the above statements, choose the correct answer from the options given below: