Advertisements
Advertisements
प्रश्न
Cl2 acts as a bleaching agent.
Advertisements
उत्तर
It is a powerful bleaching agent. Bleaching action is due to oxidation.
Cl2 + H2O → 2HCl + O
Coloured substance Colourless substance + O → It bleaches organic matter in the presence of moisture. Bleaching effect of chlorine is permanent.
APPEARS IN
संबंधित प्रश्न
Iodine exists as
- polar molecular solid
- ionic solid
- nonpolar molecular solid
- hydrogen bonded molecular solid
Compare the oxidizing action of F2 and Cl2 by considering parameters such as bond dissociation enthalpy, electron gain enthalpy and hydration enthalpy.
Give two examples to show the anomalous behaviour of fluorine.
Write two uses of ClO2.
Arrange the following in the order of property indicated for the given set:
HF, HCl, HBr, HI - increasing acid strength.
The set with the correct order of acidity is:
Reduction potentials of some ions are given below. Arrange them in decreasing order of oxidising power.
| Ion | \[\ce{CIO^{-}_{4}}\] | \[\ce{IO^{-}_{4}}\] | \[\ce{BrO^{-}_{4}}\] |
| Reduction potential EΘ/V |
EΘ = 1.19 V | EΘ = 1.65V | EΘ = 1.74 V |
Give reason to explain why ClF3 exists but FCl3 does not exist.
The reaction \[\ce{3ClO- (aq) -> ClO3- (aq) + 2Cl- (aq) + 2Cl- (aq)}\] is an example of
Statement I: Acid strength increases in the order given as HF << HCl << HBr << HI.
Statement II: As the size of the elements F, Cl, Br, and I increase down the group, the bond strength of HF, HCl, HBr, and HI decreases and so the acid strength increases.
In the light of the above statements, choose the correct answer from the options given below.
