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How many of the following compounds are ...

How many of the following compounds are diamagnetic and coloured?
`K_(2)MnO_(4), Cu_(2)Cl_(2),Hg_(2)I_(2),Ag_(2)S,HgI_(2),K_(2)CrO_(4),Cr_(2)O_(3),AgCl,Ag_(2)O,CuSO_(4),HgS,AgF,CrO_(5),Mn_(2)O_(7),MnO_(2)`

Text Solution

Verified by Experts

The correct Answer is:
9
Paramagetic- `K_(2)MnO_(4),Cr_(2)O_(3),AgO,CuSO_(4),MnO_(2)`
Diamagnetic and colored `-Hg_(2)I_(2),Ag_(2)S,HgI_(2),K_(2)CrO_(4)`
(black) (Red) (Yellow)
`Ag_(2)O("brown"),H_(g)S("black"),A_(g)F("yellow")`
`CrO_(5)("deep blue"),Mn_(2)O_(7)("dard red oil")`
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