MCQ
Froth flotation is a process of $.......$
- AOxidation.
- BReduction.
- CRefining.
- ✓Concentration.
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What is structure of $(A)$ ?
The original compound showed these properties also :
$\mathop {{C_9}{H_{12}}{O_2}}\limits_{(A)} \,\xrightarrow{{Na}}\,{H_2}$ liberated
$\mathop {{C_9}{H_{12}}{O_2}}\limits_{(A)} \,\xrightarrow{{Br}}$ no rapid reaction
$\mathop {{C_9}{H_{12}}{O_2}}\limits_{(A)} \,\xrightarrow[{cool}]{{Cr{O_3}\,/\,{H^ + }}}{C_9}{H_8}{O_3}$
| Column $I$ | Column $II$ |
| $Image$ | $(p)$ sodium fusion extract of the compound gives Prussian blue colour with $\mathrm{FeSO}_4$ |
| $Image$ | $(q)$ gives positive $\mathrm{FeCl}_3$ test |
| $Image$ | $(r)$ gives white precipitate with $\mathrm{AgNO}_3$ |
| $Image$ | $(s)$ reacts with aldehydes to form the corresponding hydrazone derivative |
