MCQ
The trace metal present in insulin is
- AIron
- BCobalt
- ✓Zinc
- DManganese
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| List $I$ (Haloalkane/arene) | Lits $II$ (Application) | ||
| $A.$ | Iodoform | $1.$ | $CF_4$ |
| $B.$ | $BHC$ | $2.$ | Antiseptic |
| $C.$ | Freon $-14$ | $3.$ | Moth repellent |
| $D.$ | Halothanes | $4.$ | Inhalative anaesthetic |
| $E.$ | $p-$ Dichlorobenzene | $5.$ | Termite pesticide |




$(a)$ Heated : it is charred
$(b)$ $I_2$ solution : no violet colour
$(c)$ Fehling solution : reddish brown ppt. is observed
$(d)$ It does not reduce copper$(II)$ acetate to $Cu_2O$ . No red precipiated is observed in $5/ min$
The carboxylate which satisfy all the above observation
