MCQ
$CH _3- CH _2- OH$ and $CH _3- O - CH _3$ are : ________ .
- APosition isomers
- Bchain isomers
- Chomologous
- ✓functional group isomers
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| Ion | Colour | |
| (a) | $Ni ^{+2}$ | Yellow |
| (b) | $Fe ^{+3}$ | Yellowish - brown |
| (c) | $CrO _4{ }^{2-}$ | Yellow |
| (d) | $Fe ^{+2}$ | Green |