Reason : Transition metals have a large energy difference between the $ns^2$ and $(n -1)d$ electrons.
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| List $I$ | List $II$ |
| $A.$ Invertase | $I.$ Starch into maltose |
| $B.$ Zymase | $II.$ Maltose into glucose |
| $C.$ Diastase | $III.$ Glucose into ethanol |
| $D.$ Maltase | $IV.$ Cane sugar into glucose |
Choose the most appropriate answer from the options given below
$C{H_2} = CH{(C{H_2})_8}COOH + HBr\xrightarrow{{{\text{peroxide}}}}$
Statement $I :$ The nucleophilic addition of sodium hydrogen sulphite to an aldehyde or a ketone involves proton transfer to form a stable ion.
Statement $II :$ The nucleophilic addition of hydrogen cyanide to an aldehyde or a ketone yields amine as final product.
In the light of the above statements, choose the most appropriate answer from the options given below :
|
LIST $-I$ (Cell) |
LIST $-II$ (Use/Property/Reaction) |
|
$A$ Leclanche cell |
$I$ Converts energy of combustion into electrical energy |
| $B$ Ni-Cd cell | $II$ Does not involve any ion in solution and is used in hearing aids |
| $C$ Fuel cell | $III$ Rechargeable |
|
$D$ Mercury cell |
$IV$ Reaction at anode $\mathrm{Zn} \rightarrow \mathrm{Zn}^{2+}+2 \mathrm{e}^{-}$ |
Choose the correct answer from the options given below: