MCQ
Compounds giving $2,4-DNP$ test is
- A

- B

- ✓

- D






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| $Ion$ | $Z ^{ n +}$ | $Z ^{ P +}$ | $Z ^{ n +}$ | $Z ^{ m +}$ | $Z ^{ m +}$ |
| $\lambda^0\left( S cm ^2 mol ^{-1}\right)$ | $50.0$ | $25.0$ | $100.0$ | $80.0$ | $100.0$ |
$\lambda^0$ is the limiting molar conductivity of ions
The plot of molar conductivity $(4)$ of $Z _{ m } X _{ n } v s c ^{1 / 2}$ is given below.

| Element | $Fe$ | $Co$ | $Ni$ | $Cu$ |
| Metallic radii/pm | $126$ | $125$ | $125$ | $128$ |