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Bleaching powder loses its power on keep...

Bleaching powder loses its power on keeping for a long time because

A

It changes into calcium hypochlorate

B

It changes into calcium chloride and calcium hydroxide

C

It absorbs moisture

D

It changes into calcium chloride and calcium chlorate

Text Solution

Verified by Experts

The correct Answer is:
D
In long term, bleaching powder undergoes autoxidation and disproportianate to calcium chloride and calcium chlorate.
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ERRORLESS-THE P -BLOCK ELEMENTS (NITROGEN, OXYGEN, HALOGEN AND NOBLE FAMILY)-NCERT BASED QUESTIONS (Halogen Family)
  1. Chlorine acts as a bleaching agent only in the presence of

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  2. NaOCI is used as a bleaching agent and sterllising agent. It can be sy...

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  3. Bleaching powder loses its power on keeping for a long time because

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  4. The correct order of increasing hydration energy of the following conj...

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  5. Bromine is liberated when aqueous solution of potassium bromide is tre...

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  6. In the manufacture of bromine from sea water the mother liquor contain...

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  7. A one litre flask is full of brown bromine vapours. The intensity of b...

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  8. Bromine water reacts with SO(2) to form

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  9. The solubility of iodine in water increases in the presence of

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  10. When thiosulphate ion is oxidised by iodine. which one of the followin...

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  11. Colour of iodine solution is disappeared by shaking it with aqueous so...

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  12. In K solution, I(2) readily dissolved and forms

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  13. HI cannot be prepared by the action of conc. H(2)SO(4) on KI because

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  14. When iodine is passed through aqueous solutions of NaF, NaBr and NaCl

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  15. If I2 is dissolved in aqueous KI, the intense yellow species I3^ is fo...

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  16. Conc. HNO3 reacts with I2 to form:

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  17. Cl(2) reacts with CS(2) in presence of I(2) catalyst to form

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  18. Ozone with dry iodine give

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  19. Iodine is formed when potasium iodide reacts with:

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  20. When chlorine gas is passed through an aqueous solution of KBr, the so...

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