MCQ
When $Pb{O_2}$ reacts with conc. $HN{O_3}$ the gas evolved is
- A$N{O_2}$
- ✓${O_2}$
- C${N_2}$
- D${N_2}O$
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Scheme $1$ : (image)
Scheme $2$ :(image)
Scheme $3$ :(image)

$(A)$ $T$ is soluble in hot aqueous $NaOH$
$(B)$ $U$ is optically active
$(C)$ Molecular formula of $W$ is $C _{10} H _{18} O _4$
$(D)$ $V$ gives effervescence on treatment with aqueous $NaHCO _3$