The first transition series metal $M$ has the highest enthalpy of atomisation in its series. One of its aquated ion $(M^{n+})$ exists in green colour. The nature of the oxide formed by the above $M^{n+}$ ion is $:$
- Aneutral
- Bacidic
- Cbasic
- Damphoteric
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Among $CrO$,$Cr_2O_3$,and $CrO_3$,the sum of spin-only magnetic moment values of basic and amphoteric oxides is . . . . . . . . $10^{-2} \ BM$ (nearest integer).
(Given atomic number of $Cr$ is $24$)
(Given atomic number of $Cr$ is $24$)
Which alloy is used for making coins?
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View SolutionIn making gun-barrel,the steel used is
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View SolutionProvide the structures of the following ions:
$1.$ $CrO_4^{2-}$
$2.$ $Cr_2O_7^{2-}$
$1.$ $CrO_4^{2-}$
$2.$ $Cr_2O_7^{2-}$
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View SolutionPick out the incorrect statement:
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