1.

The salt which does not form coloured metaborate in borax bead test.

Answer»

`Fe_(2)(SO_(4))_(3)`
`Al_(2)(SO_(4))_(3)`
`Cr_(2)(SO_(4))_(3)`
`CoSO_(4)`

Solution :`(r_(x_(3)))/(r_(CH_(4)))=sqrt((M_(CH_(4)))/(M_(x_(3))))`
`(4//3)/(1)=sqrt((16)/(M_(x_(3))))""M_(x_(3))=9`
ATOMIC MASS x = 3
`V.D.=(9)/(2)=4.5""d=(MP)/(RT)`


Discussion

No Comment Found

Related InterviewSolutions