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Platinum metal (Pt) dissolves in aqua-re...

Platinum metal (Pt) dissolves in aqua-regia but not in concentrated HCl ot `HNO_(3)` because

A

HCl oxidises Pt in the presence of `HNO_(3)`

B

`HNO_(3)` reacts with HCl to form chlorine which attacks Pt

C

`HNO_(3)` oxidises Pt which is followed by formation of a chloro complex

D

HCl and `HNO_(3)` together give `O_(2)` that oxidises Pt

Text Solution

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The correct Answer is:
B
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