MCQ
In a reversible isothermal process, the change in internal energy is
- ✓Zero
- BPositive
- CNegative
- DNone of these
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$\mathrm{A}$ and $\mathrm{Y}$ are respectively
| $[HI]$, $M$ | rate, $Ms^{-1}$ |
| $0.0500$ | $8.80 \times {10^{ - 10}}$ |
| $0.1000$ | $3.52 \times {10^{ - 9}}$ |
| $0.1500$ | $7.92 \times {10^{ - 9}}$ |

| $LIST-I$ | $LIST-II$ |
| $(I)$ Aniline | $(P)$ Sodium fusion extract of the compound on boiling with $FeSO _4$, followed by acidification with conc. $H _2 SO _4$, gives Prussian blue color. |
| $(II)$ o-Cresol | $(Q)$ Sodium fusion extract of the compound on treatment with sodium nitroprusside gives blood red color. |
| $(III)$ Cysteine | $(R)$ Addition of the compound to a saturated solution of $NaHCO _3$ results in effervescence. |
| $(IV)$ Coprolactam | $(S)$ The compound reacts with bromine water to give a white precipitate. |
| $(T)$ Treating the compound with neutral $FeCl _3$ solution produces violet color. |