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Write four uses of Helium....

Write four uses of Helium.

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SHARAM PUBLICATION-SOLVED PAPER 2-EXERCISE
  1. Which alkali is used in Cannizarro's reaction?

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  2. What is the electronic configuration of first row transition element...

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  3. Write four uses of Helium.

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  4. Write two factors which influence the solubility of solid in a liquid ...

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  5. What is an electrochemical cell?

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  6. Which compound is obtained when sulphuric acid is added to sugar?

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  7. Ionic solids conduct electricity in molten state but not in solid stat...

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  8. Vapour pressure of water at 293K is 17.51mm . Lowering of vapou...

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  9. Arrange the following acids in their increasing order of acidity with...

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  10. Buna-N and buna-s.

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  11. What are the ambidentate ligands ? Give examples.

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  12. What is the action of so2 with quick lime?

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  13. 0.5 N solution of an electrolyte placed between two platinum electrod...

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  14. What happens when chlorobenzene undergoes Friedel Craft's alkylatio...

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  15. What happen when iodine reacts with ConC. HNO3 ?

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  16. What happens when acetone is treated with NaHSO3?

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  17. Explain the action of nitrous acid on primary, secondary and tertiary ...

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  18. Discuss the effect of pressure on solubility of gases in liquid.

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  19. Write a note on interhalogen compounds.

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  20. Distinguish between the terms homopolymer and copolymer. Give one exam...

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