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D and F Block Elements question

2019 · Shift 2 · Q5

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PYQ Library
JEE Advanced
Chemistry
D and F Block Elements
2019 · Shift 2 · Q5

D and F Block Elements question

2019 · Shift 2 · Q5

JEE AdvancedChemistryD and F Block ElementsMultiple correct+4 / −1

With reference to aqua-regia, choose the correct option(s).

A
Aqua-regia is prepared by mixing conc. $HCl$ and conc. $HNO_3$ in 3 : 1 (v / v) ratio
B
The yellow colour of aqua-regia is due to the presence of $NOCl$ and $Cl_2$
C
Reaction of gold with aqua-regia produces an anion having Au in +3 oxidation state
D
Reaction of gold with aqua regia produces $NO_2$ in the absence of air

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