MCQ
When $CuS{O_4}$ is hydrated, then it becomes
- AAcidic
- Bbasic
- CNeutral
- ✓Amphoteric
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|
List $I$ (Anion) |
List $II$ $($Gas evolved on reaction with dil $H _{2} SO _{4})$ |
| $A.$ $CO _{3}^{2-}$ | $I.$ Colourless gas which turns lead acetate paper black |
| $B.$ $S^{2-}$ | $II.$ Colourless gas which turns acidified potassium dichromate solution green. |
| $C.$ $SO_{3}{ }^{2-}$ | $III.$ Brown fumes which turns acidified KI solution containing starch blue. |
| $D.$ $NO _{2}^{-}$ | $IV.$ Colourless gas evolved with brisk effervescence, which turns lime water milky. |
Choose the correct answer from the options given below
$(A)$ $\left[ FeF _{6}\right]^{3-}$
$(B)$ $\left[ Fe ( CN )_{6}\right]^{3-}$
$(C)$ $\left[ MnCl _{6}\right]^{3-}$ (high spin)
$(D)$ $\left[ Mn ( CN )_{6}\right]^{3-}$