MCQ
Which salt is colourless?
- A$KMnO_4$
- ✓$BaSO_4$
- C$Na_2CrO_4$
- D$COCl_2$
✓
Answer
Correct option: B.
$BaSO_4$
b
$(a)$ $\mathrm{KMnO}_{4} \quad:$ Pink/Purple
$(a)$ $\mathrm{KMnO}_{4} \quad:$ Pink/Purple
$(b)$ $BaSO $$_{4}$ : Colourless
$(c)$ $\mathrm{Na}_{2} \mathrm{CrO}_{4}:$ Yellow
$(d)$ $\mathrm{CoCl}_{2} \quad$ : Blue compound
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