MCQ
According to $IUPAC$ system, the compound $image$ is named as


- ACyclohex-$1$-en-$2$-ol
- B$1$-Hydroxyhex-$2$-ene
- CCyclohex-$1$-en-$3$-ol
- ✓Cyclohex-$2$-en-$1$-ol

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(Atomic numbers : $Fe=26,Co=27,Mn=25,Cr=24$)

$Pt ( s )\left| H _{2}( g , 1 bar )\right| HCl ( aq \cdot, pH =1)| AgCl ( s )| Ag ( s )$
The $pH$ of aq. HCl required to stop the photoelectric current from $K \left( w _{0}=2.25 eV \right),$ all other conditions remaining the same, is..........$\times 10^{-2}$ (to the nearest integer).
Given, $2.303 \frac{ RT }{ F }=0.06 V ; E _{ AgC1|Ag|C ^{-}}^{0}=0.22\, V$
$C{{H}_{3}}CN+2H\underset{\text{Ether}}{\mathop{\xrightarrow{HCl}}}\,X\underset{{{H}_{2}}O}{\mathop{\xrightarrow{\text{Boiling}}}}\,Y;$ the term $Y$ is: