MCQ
Which of the following is the most stable compound
- ✓$P{h_3}\mathop C\limits^ + $
- B$P{h_2}\mathop C\limits^ + H$
- C$P{h_3}\mathop C\limits^ + {H_2}$
- D$Ph\mathop C\limits^ + {H_2}$
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| Experiment |
$[A]$ (in $mol\, L^{-1})$ |
$[B]$ (in $mol\, L^{-1})$ |
Initial rate of reaction (in $mol\, L^{-1}\,min^{-1})$ |
| $I$ | $0.10$ | $0.20$ | $6.93 \times {10^{ - 3}}$ |
| $II$ | $0.10$ | $0.25$ | $6.93 \times {10^{ - 3}}$ |
| $III$ | $0.20$ | $0.30$ | $1.386 \times {10^{ - 2}}$ |
The time(in minutes) required to consume half of $A$ is
(Atomic No. $Y = 39$, $La = 57$, $Eu = 63$, $Lu = 71$)
