MCQ
Which will have the highest enol content?
- A

- B

- ✓

- D






, Which is aromatic in nature.
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| column $I$ | column $II$ |
| $(A)$ $CO _2( s ) \rightarrow CO _2( g )$ | $(p)$ phase transition |
| $(B)$ $CaCO _3( s ) \rightarrow CaO$ (s) $+ CO _2( g )$ | $(q)$ allotropic change |
| $(C)$ $2 H \bullet \rightarrow H _2( g )$ | $(r)$ $\Delta H$ is positive |
| $(D)$ $P_{\text {(white, solid) }} \rightarrow P_{\text {(red, solid) }}$ | $(s)$ $\Delta S$ is positive |
| $(t)$ $\Delta S$ is negative |
| List$-I$ | List$-II$ |
| $(I)$ $XeF_4$ | $(A)$ See-saw |
| $(II)$ $I_3^-$ | $(B)$ Tetra hedral |
| $(III)$ $XeO_2F_2$ | $(C)$ Bond angle $90^o$ |
| $(IV)$ $SO_4^{2-}$ | $(D)$ Linear |

