MCQ
(see figure) Major Product, product will be :


- ✓

- B

- C

- D








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$(1)$ Reaction of gold with aqua regia produces $NO _2$ in the absence of air
$(2)$ Aqua regia is prepared by mixing conc. $HCl$ and conc. $HNO _3$ in $3: 1$ ($v/v$) ratio
$(3)$ Reaction of gold with aqua regia produces an anion having $Au$ in +$3$ oxidation state
$(4)$ The yellow colour of aqua regia is due to the presence of $NOCl$ and $Cl _2$
