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


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


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| List $-I$ (Chemicals) | List $-II$ (Use / Preparation / Constituent) |
| $(a)$ Alcoholic potassium hydroxide | $(i)$ Electrodes in batteries |
| $(b)$ $Pd / BaSO _{4}$ | $(ii)$ Obtained by addition reaction |
| $(c)$ $BHC$ (Benzene hexachloride) | $(iii)$ Used for $\beta$ - elimination reaction |
| $(d)$ Polyacetylene | $(iv)$ Lindlar's catalyst |
Choose the most appropriate match
In which of the following pair above statement is $NOT$ $CORRECT$ ?
