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Condsider the following reaction , Nitri...

Condsider the following reaction , Nitrite+Acetic acid +Thiourea `to N_(2) uarr + SCN^(-) + 2H_(2)O` Formation of the product in the above reaction can be identified by:

A

`FeCI_(3)//`dilute `HCI`, when blood red colour appears

B

`FeCI_(3)//`dilute `HCI`, when blue colour appears

C

`K_(2)Cr_(2)O_(7)//HCI`, when green colour appears

D

`KMnO_(4)//HCI`, when colourless solution is formed

Text Solution

Verified by Experts

The correct Answer is:
A
`Fe^(3+) +SCN^(-) rarr Fe(SCN)_(3)` (Blood red colouration)
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GRB PUBLICATION-SALT ANALYSIS-C.Class- A Subgroup-I-Acidic Radicals
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