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The solubility of iodine in water increa...

The solubility of iodine in water increases in the presence of

A

Alcohol

B

Chloroform

C

sodium hydroxide

D

potassium iodide

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Verified by Experts

The correct Answer is:
D
Iodine has the least affinity for water and is only slightly soluble in it. However, it dissolves in `10%aq`. Solution of `KI` due to the formation of a complex ion i.e., `I_(3)^(-)`.
`I_(2)+KI hArr KI_(3)` or `I_(2)+I^(-) hArr I_(3)^(-)` (complex ion)
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A2Z-P BLOCK ELEMENTS ( GROUP 15,16,17,18)-Section D - Chapter End Test
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  2. The most efficient agent for the absorption of SO(3) is

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

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

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  6. Which of the following oxyacids of phosphorus is a reducing agent and ...

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  7. Which of the following oxyacids of phosphorus is a reducing agent and ...

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  8. Boiling/melting points of the following hydrides follow in order.

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  9. On controlled hydrolysis and condensation, R(3)SiCl yields

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  10. Bleaching action of SO(2) is due to

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  11. One gas bleaches the colour of flowers by reduction and other by oxida...

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  12. With cold and dilute sodium hydroxide fluorine reacts to give

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  13. Which one of the following statements regarding helium is incorrect?

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  14. Who among the following firest prepared a stable compound of noble g...

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  15. Calcium cyanamide on treatment with steam produce

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  16. Four reaction are given below (i) 2Li+2H(2)Orarr2LiOH+H(2) (ii) 2N...

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  17. Each of the following is true for white and red phosphorus except that...

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  18. VA group precipitate was dissolved in HNO(3) and treated with excess o...

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  19. PCI(5) exists but NCI(5) does not because

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  20. the pentavalence in phosphorus is more stable as compared to that of n...

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