MCQ
Enzymes are made up of
- ACarbohydrates
- BEdible proteins
- CNitrogen containing carbohydrates
- ✓Proteins with specific structure
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Statement- $I$: Along the period, the chemical reactivity of the element gradually increases from group $1$ to group $18$.
Statement - $II$: The nature of oxides formed by group $1$ element is basic while that of group $17$ elements is acidic.In the the light above statements, choose the most appropriate from the questions given below:
| Column $-I$ | Column $-II$ |
| $(i)$ $n-$ Butane $\to 2-$ methyl propane | $(A)$ Free redical substitution |
| $(ii)$ $C{H_4} + C{l_2} \xrightarrow{{hv}} C{H_3} + Cl$ | $(B)$ Wurtz reaction |
| $(iii)$ $R - COONa\xrightarrow{{soda - \lim e}}R - H$ | $(C)$ Isomerism |
| $(iv)$ $R - X + Na\xrightarrow{{{\text{E}}ther}}R - R$ | $(D)$ De-carboxylation |
$A.$ has completely filled $\pi$ antibonding molecular orbitals
$B.$ is diamagnetic
$C.$ has bond order one
$D.$ is isoelectronic with Neon