MCQ
Which one of the following is an ionic crystal?
- AGlass
- BRubber
- ✓NaCl
- D$SiO _2$
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| Reaction number | [A] (min) |
[B] (min) |
Initial rate $(M s^{-1}$ |
| 1 | 0.1 | 0.1 | x |
| 2 | 0.2 | 0.1 | 2x |
| 3 | 0.1 | 0.2 | 4x |
| 4 | 0.2 | 0.2 | 8x |
In a first order reaction
$x \longrightarrow y$
; if $k$ is the rate constant and the initial concentration of the reactant $x$ is $0.1 M$, then, the half life is