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Bond angle in "PH"(4)^(" "+) is higher t...

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

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VGS PUBLICATION-BRILLIANT-MOST IMPORTANT QUESTIONS-P - BLOCK ELEMENTS (VERY SHORT ANSWER TYPE QUESTIONS)
  1. Write the oxidation states of phosphorus in solid "PCl"(5).

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

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

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

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  5. What is tailing of mercury?

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

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

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

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

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

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  11. Explain the structure of ClF(3).

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

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

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

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

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  16. Iodine is more soluble in KI than in water - Explain.

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  17. List out the uses of Neon.

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  18. Write the uses of ozone.

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  19. In modern diving apparatus, a mixture of He and O(2) is used - Why ?

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  20. Scandium is a transition element. But Zinc is not. Why ?

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