Q.The colour produced in Victor Meyer test for primary alcohol is deep blue. (True / False)

The statement is False; primary alcohols turn red, not blue, in Victor Meyer's test.

Victor Meyer's test distinguishes 1°, 2° and 3° alcohols:

1. The alcohol is converted to the alkyl iodide (using red P + I₂).
2. The alkyl iodide is treated with AgNO₂ to give the corresponding nitroalkane.
3. The nitroalkane is treated with nitrous acid (HNO₂), followed by KOH.

Results:

• Primary alcohol → nitroalkane has two $\alpha$-H atoms → forms a nitrolic acid, which dissolves in KOH to give a red colour.
• Secondary alcohol → nitroalkane has one $\alpha$-H → forms a pseudo-nitrol, giving a blue colour. …