MCQ
Which of the following has the same mass as that of an electron
- APhoton
- BNeutron
- ✓Positron
- DProton
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| Acid | $HF$ | $HCL$ | $HBr$ | $HI$ |
| $K_a$ | $7.2 \times 10^{-4}$ | $1 \times 10^6$ | $1 \times 10^9$ | $3 \times 10^{11}$ |
Which of these Bronsted acids would have the weakest conjugate base ?
$2NOBr(g)\,\,\rightleftharpoons \,\,2NO(g)\,\,+\,\,Br_2(g),$ where $P$ is the total pressure of gases at equilibrium and $P_{Br_2}\,\,=\,\,\frac {P}{9}$