1.

which of the following compounds on reaction with NaOh and H_(2)O_(2) gives yellow colour ?

Answer»

`ZN(OH)_(2)`
`CR(OH)_(3)`
`AI(OH)_(3)`
None of these.

Solution :`2Cr(OH)_(3)+10NaOH+3H_(2)O_(2)RARR underset("Yellow")(2Na_(2)CrO_(4))+6NaOH+8H_(2)O`


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