MCQ
What is the correct IUPAC name of


- A3-Bromo-2-hydroxy-5-nitrobenzoic acid
- B3-Bromo-4-hydroxy-1-nitrobenzoic acid
- C2-Hydroxy-3-bromo-5-nitrobenzoic acid
- D5-Nitro-3-bromo-2-hydroxybenzoic acid


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$HC \equiv CH\mathop {\xrightarrow{{{\text{1% HgS}}{{\text{O}}_{\text{4}}}}}}\limits_{20\% {H_2}S{O_4}} A\xrightarrow{{C{H_3}MgX}}B\xrightarrow{{[O]}}$
$C_2H_4O(g) \longrightarrow CH_4(g) + CO(g)$ If the initial pressure of $C_2H_4O(g)$ is $80\, mm$ and total pressure at the end of $20\, minutes$ is $120\, mm$ ............ $\min$