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When a blue litmus is dipped into a solu...

When a blue litmus is dipped into a solution of hypochlorous acid, it turns red and then gets decolourised.Explain.

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HOCl acts as an acid , `HOCl to H^+ + OC l^-` and thus turns blue litmus to red. It also work as bleaching agent, `HOCl to HCl + [O]` , and the red litmus is decolorized by nascent oxygen.
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RESONANCE ENGLISH-P-BLOCK ELEMENTS (HALOGEN & NOBLE GASES)-APSP PART-3
  1. When a blue litmus is dipped into a solution of hypochlorous acid, it ...

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  2. Which graph correctly describes a trend found in the halogen group ?

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  3. ClO2 + Na2O2 rarr A+B (A) and (B) are:

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  4. The following equilibria are given by rhoN(2)+3H(2)hArr2NH(3):K(1) ...

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  5. Consider following properties of the noble gases. I. They readily fo...

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  6. Consider equation: P4O10 + H2O → H3PO4. Number of moles of H3PO4 ...

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  7. Cl(2)(g)+Ba(OH)(2)rarrX(aq.)+BaCl(2)+H(2)O X+H(2)SO(4)rarrY+BaSO(4) ...

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  8. Which of the following on treatment with XeF6gives Xe ?

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  9. Which of the following have melting point less than 298 K

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  10. Identify A and B : PF(3)+H(2)O rarr A+HF, A overset∆ rarr B+ PH(3)

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  11. Select the correct statement

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  12. Which of the following are Pseudo halid

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  13. Which of the following can be obtained by hydrolysis of XeF6

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  14. What is the sum of group number and period number (according to IUPAC ...

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  15. How many of the following compounds from HCl on hydrolysis as one of t...

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  16. NH4ClO4 + HNO3 to HClO4 + (A), (A)oversetDeltato (B) (A) and (B)...

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  17. The oxidation state of iodine in compound which is obtained by heating...

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  18. NH4Cl + HNO3 to HCl + (A), (A)oversetDeltato (B) (A) and (B) are...

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  19. The simplest ratio x:y of xenon and fluorine when passes through Ni-tu...

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  20. White crystalline solid (A) reacts with H(2) to form a highly associat...

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  21. White crystalline solid (A) reacts with H(2) to form a highly associat...

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