MCQ
Azo dye is prepared by the coupling of phenol and :
- ✓Diazonium chloride
- B$o-$nitro aniline
- CBenzoic acid
- DChlorobenzene
✓
Answer
Correct option: A.
Diazonium chloride
a
(a) Azo dye is prepared by the coupling of phenol and diazonium chloride.
(a) Azo dye is prepared by the coupling of phenol and diazonium chloride.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Among the following compounds most basic amino acid is
Which of the following has highest ionic radii
Which of the following is correct expression for electrode potential of a cell
In which compound, the oxidation state of phosphorus is $+4$
→Four successive members of the first row transition elements are listed below with their atomic numbers. Which one of them is expected to have the highest third ionization enthalpy
Benzene and toluene form nearly ideal solutions. At $20\,^o C, $ the vapour pressure of benzene is $75\,torr$ and that of toluene is $22\,torr$. The parial vapour pressure of benzene at $20\,^o C$ for a solution containing $78\, g $ of benzene and $46\,g$ of toluene in torr is
→The hydrogen formed by the action of zinc on sulphuric acid forms a layer of gas on the surface of copper plate in a simple voltaic cell, because of which:
The light yellow compound produced when acetone reacts with iodine and alkali, is
Decomposition of $H_2O$ follows a first order reaction. In fifty minutes the concentration of $H_2O_2$ decreases from $0.5$ to $0.125\,\min$ one such decomposition. When the concentration of $H_2O_2$ reaches $0.05\, M,$ the rate of formation of $O_2$ will be :
→From each of the following pairs select the compound that will react faster with sodium iodide in acetone :
→Pair $-\,A:$ $(1) \,2 - $ Chloropropane $(2) \,2-$ Bromopropane
Pair $-\,B:$ $(3) \,1 -$ Bromobutane $(4)\, 2-$ Bromobutane