For the identification of -naphthol using dye test- it is necessary to use-

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Common Ion Effect

For the ident...

Question

For the identification of $β$ -naphthol using dye test, it is necessary to use:

dichloromethane solution of

β

-naphthol

No worries! We‘ve got your back. Try BYJU‘S free classes today!

acidic solution of

β

-naphthol

No worries! We‘ve got your back. Try BYJU‘S free classes today!

neutral solution of

β

-naphthol

No worries! We‘ve got your back. Try BYJU‘S free classes today!

alkaline solution of

β

-naphthol

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D alkaline solution of $β$ -naphthol
In alkaline solution -OH convert to $- O^{-}$ which reacts with azo compound i.e, $P h - N \equiv N^{+}$ to form azo dye.

Hence, the correct option is D.

Suggest Corrections

Similar questions

Amongst the compound given, the one that would form a brilliant coloured dye on treatment with NaNO₂ in dil.HCL followed by addition to an alkaline solution Of β-naphthol is:

Q. Diazonium salt of which of the following will give coloured dye on reaction with

β - Naphthol

in acidic medium & NaOH:

Q. If

a cos 2 θ + b sin 2 θ = c

α

and

β

as solution then the value of

tan α + tan β i s

Q. If

a c o s 2 θ + b s i n 2 θ = c h a s α a n d β

as its solution, then the value of

t a n α + t a n β

Q. If

α, β

are the solutions of

sin x = - \frac{1}{2}

[0, 2 π]

and

α, γ

are the solutions of

cos x = - \frac{\sqrt{3}}{2}

[0, 2 π],

then

Join BYJU'S Learning Program

For the identification of β-naphthol using dye test, it is necessary to use:

The correct option is D alkaline solution of β -naphtholIn alkaline solution -OH convert to −O− which reacts with azo compound i.e, Ph−N≡N+ to form azo dye.Hence, the correct option is D.

For the identification of $β$ -naphthol using dye test, it is necessary to use:

The correct option is D alkaline solution of $β$ -naphthol
In alkaline solution -OH convert to $- O^{-}$ which reacts with azo compound i.e, $P h - N \equiv N^{+}$ to form azo dye.

Hence, the correct option is D.