Alcohols Phenols And Ethers Question 58
Question: In the Victor-Meyer’s test, the colour given by $ 1{}^\circ ,2{}^\circ $ and $ 3{}^\circ $ alcohols are respectively:
Options:
A) Red, colourless, blue
B) Red, blue, colourless
C) Colourless, red, blue
D) Red, blue, violet
Show Answer
Answer:
Correct Answer: B
Solution:
[b] Victor Meyer’s test: The various steps involved are (i) $ RCH_2OH\xrightarrow{HI}RCH_2I\xrightarrow{AgNO_2} $
$ RCH_2NO_2\xrightarrow{HNO_2}\underset{Nitrolicacid}{\mathop{R-\underset{NOH}{\mathop{\underset{||}{\mathop{C}}}}-NO_2}}\xrightarrow{KOH} $ Blood red colour (ii) (iii) $ R_3COH\xrightarrow{HI}R_3CI\xrightarrow{AgNO_2} $
$ R_3CNO_2\xrightarrow{HNO_2}Noreaction\xrightarrow{KOH}Colourless $
BETA
