Home
Class 11
CHEMISTRY
The hair dyes available in the market ge...

The hair dyes available in the market generally contain two bottles, one containing the dye and the other hydrogen peroxide. Before applying the dye, the two solutions are mixed. The hydrogen peroxide.

A

is added to dilute the solution of the dye

B

oxidises the dry to give the desired colour

C

reduces the dye to give the desired colour

D

acidifies the solution of the dye

Text Solution

Verified by Experts

The correct Answer is:
B

The hydrogen peroxide oxidises the dye to give the desired colour
Promotional Banner

Similar Questions

Explore conceptually related problems

Angle between two OH groups of solid hydrogen peroxide is

Write two oxidation and two reduction reactions of Hydrogen peroxide .

The volume of oxygen liberated at STP by decomposition of one L hydrogen peroxide solution with a strength of 17g per litre ?

Two closed pipes have the same fundamental frequency. One is filled with oxygen and the other with hydrogen at the same temperature. Ratio of their lengths respectively is

A container of volume 1m^(3) is divided into two equal compartments, one of which contains an ideal gas at 300K. The other compartment is vaccum. The whole system is thermally isolated from its surroundings. The partition is removed and the gas expands to occupy the whole volume of the container. Its temperature now would be

Hydrogen bonding is said to be formed, -when sightly acidic hydrogen-atom attached to a strongly, electronegative fluorine, oxygen or nitrogen atom. is held with weak. electrostatic forces by the non-bonded pair of electrons of another atom. The co-ordination number of hydrogen in such cases is two. It acts as a bridge between two atoms, to one of which it is covalently bonded and to other attached through electrostatic forces, also called hydrogen bond. Though the hydrogen atoms in a methyl group are not polarised, if an electronegative group like chloro, carbonyl, nitro or cyano (in order to increase electronegativity) is attached to it, the C-H bond gets polarised due to the inductive effect and the hydrogen atom becomes slightly acidic resulting in the formation of weak hydrogen bonds. Though a weak bond the H-bond effects is large number of the physical properties of compounds some of which are - Boiling points of liquids - Solubility of polar compounds in polar solvents (containig H attached with strong electronegative atom) - Viscosity of liquids . Acidity Which of the following combinations can involve hydrogen bonding I) Mixture of KF and HF " " II) Mixture of CH_(3)COCH_(3) and CHCI_(3) III) Mixture of NH_(4) CI and H_(2)O" " IV) Mixture of CH_(3) and H_(2)O