MCQ
Which reagent is suitable for this conversion?

- AZn−Hg/HCl
- BLiAlH4
- CNH2−NH2/OH−
- DRed P + HI

Explanation:
Suitable Reagent for this conversion is LiAlH4.
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| Pressue $(mm\, Hg)$ | $50$ | $100$ | $200$ |
| Half-life period $(hrs.)$ | $3.52$ | $1.76$ | $0.88$ |
What will be the pressure when the half-life period is $2.5$ hours
$(CH_3)_2CHCH_2C \equiv N \xrightarrow{HCl,{{H}_{2}}O}$ compound $A \xrightarrow[2.\,{{H}_{2}}O]{1.\,LiAl{{H}_{4}}}$ compound $B \xrightarrow[C{{H}_{2}}C{{l}_{2}}]{PCC}$ compound $C$