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From given compounds how many have tetra...

From given compounds how many have tetrahedral shape, not sp^(3) hybridised and coloured W.r.t. underline atoms.
`MnO_(4)^(-), Cr_(2)O_(7)^(2-), VO_(4)^(3-),[Fe(H_(2)O)_(5)NO]^(+2), CrO_(2)Cl_(2)`

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The correct Answer is:
4

`MnO_(4)^(-),Cr_(2)O_(7)^(2-),VO_(4)^(3-),CrO_(2)Cl_(2)` are `d^(3)s` hyb. and tetrahedral.
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