MCQ
Acid $\mathrm{D}$ formed in above reaction is:


- AGluconic acid
- ✓Succinic acid
- COxalic acid
- DMalonic acid


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Among the given complexes, number of paramagnetic complexes is .... .
$S_8,\,S_2O_3^{2-},\, S_2O_7^{-2},\, S_4O_6^{-2},\, SO_3^{-2}$
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: