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A mixture of "Ca"(3)"P"(2) and "CaC"(2) ...

A mixture of `"Ca"_(3)"P"_(2)` and `"CaC"_(2)` is used in making Holme's signal - Explain.

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VGS PUBLICATION-BRILLIANT-MOST IMPORTANT QUESTIONS-P - BLOCK ELEMENTS (VERY SHORT ANSWER TYPE QUESTIONS)
  1. Hydrogen bond is

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  2. Ammonia is a good complexing agent - Explain with an example.

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  3. A mixture of "Ca"(3)"P"(2) and "CaC"(2) is used in making Holme's sign...

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  4. Which chemical compound is formed in the brown ring test of nitrate io...

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  5. NO is paramagnetic in gaseous state but diamagnetic in liquid and soli...

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  6. Write the oxidation states of phosphorus in solid "PCl"(5).

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  7. H(3)"PO"(3) is diprotic while H(3)"PO"(2) is monoprotic - Why ?

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  8. Bond angle in "PH"(4)^(" "+) is higher than that in "PH"(3). Why ?

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  9. Why is H(2)O a liquid while H(2)S is a gas ?

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  10. What is tailing of mercury?

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  11. Write the reactions of F(2) and Cl(2) with water.

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  12. Explain the reactions of Cl(2) with NaOH.

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  13. What happens when Cl(2) reacts with dry slaked lime ?

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  14. Chlorine acts as an oxidizing agent - explain with two examples.

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  15. How is chlorine manufactured by Deacon's method ?

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  16. Explain the structure of ClF(3).

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  17. Give the oxidation states of halogens in the following : Cl(2)O

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  18. Give the oxidation states of halogens in the following : ClO(2)^(-)

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  19. Give the oxidation states of halogens in the following : KBrO(3)

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  20. Give the oxidation states of halogens in the following : NaClO(4)

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