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CrO3 dissolves in aqueous NaOH to give...

`CrO_3` dissolves in aqueous NaOH to give

A

`Cr_(2)O_(7)^(2-)`

B

`CrO_(4)^(2-)`

C

`Cr(OH)_(3)`

D

`Cr(OH)_(2)`

Text Solution

Verified by Experts

`CrO_(3) +2NaOH to underset("Yellow colour")underset("Sod. Chromate")(Na_(2)CrO_(4)) +5H_(2)O`
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Explore conceptually related problems

Cr)_(3) dissolved in aqueous NaOH to give:

Compound (A) C_(7)H_(8)O is insoluble in aqueous NaHCO_(3) and dissolves in aqueous NaOH and gives a characteristic colour with neutral FeCl_(3) . When treated with Br_(2) (A) forms compound (B) C_(7)H_(5)O Br_(3) . The structure of compound (B) would be :

Compound (A) C_(7)H_(8)O is insoluble in aqueous NaHCO_(3) and dissolves in aqueous NaOH and gives a characteristic colour with neutral FeCl_(3) . When treated with Br_(2) (A) forms compound (B) C_(7)H_(5)O Br_(3) . The most probable structure of compound A is :

Compound (A) C_(7)H_(8)O is insoluble in aqueous NaHCO_(3) and dissolves in aqueous NaOH and gives a characteristic colour with neutral FeCl_(3) . When treated with Br_(2) (A) forms compound (B) C_(7)H_(5)O Br_(3) . What could be the structure of compound (A) if neither dissolves in aq. NaHCO_(3) nor gives a characteristic colour with FeCl_(3) ?

Which element of the carbon family does not dissolve in aqueous NaOH to evolve hydrogen gas?

DINESH PUBLICATION-PRINCIPLES RELATED TO PRACTICAL CHEMISTRY-RQ
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