MCQ
Product in above reaction is


- ✓

- B

- C

- D







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$\mathrm{X} \rightleftharpoons \mathrm{Y} ; \mathrm{K}_1=1.0$
$\mathrm{Y} \rightleftharpoons \mathrm{Z} ; \mathrm{K}_2=2.0$
$\mathrm{Z} \rightleftharpoons \mathrm{W} ; \mathrm{K}_3=4.0$
The equilibrium constant for the reaction $\mathrm{X} \rightleftharpoons \mathrm{W}$ is
| $LIST-I ($Substances$)$ | $LIST-II ($Element Present$)$ | ||
| $A.$ | Ziegler catalyst | $I.$ | Rhodium |
| $B.$ | Blood Pigment | $II.$ | Cobalt |
| $C.$ | Wilkinson catalyst | $III.$ | Iron |
| $D.$ | Vitamin $B_{12}$ | $IV.$ | Titanium |
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
$\mathop {{C_9}{H_{12}}{O_2}}\limits_{(A)} \,\xrightarrow[{cool}]{{Cr{O_3}\,/\,{H^ + }}}{C_9}{H_8}{O_3}$

