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Give one reason why a finely divided sub...

Give one reason why a finely divided substance is more effective as an addorbent?

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UNITED BOOK HOUSE-MP_1-EXERCISE
  1. Consider the reaction: Cr2O(7)^(2-)+I4H^+ +6e rarr 2Cr^(3+)+7H2O. What...

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  2. Write two differeneces between physisorption and chemisorption.

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  3. Give one reason why a finely divided substance is more effective as an...

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  4. The atomic sizes of "26Fe(27)Co and "28Ni are nearly same. Explain wit...

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  5. Why "30Zn^(2+) salts are white while "29Cu^(2+) salts are blue?

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  6. Give an example of an artifical sweetener whose use is limited to cold...

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  7. A solutioln of CuSO4 is electrolysed for 10 mins wite a current of 1.5...

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  8. What are 'micelles'? Give an example of heterogenous catalysis.

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  9. Between white & red phosphorus which one is more reactive & why?

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  10. Explain the following: HF acid is stored in wax coated galss bottles.

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  11. Explain the following: HCIO4 is a stronger acid than H2SO4.

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  12. Write the IUPAC name for the coordination compound Fe4[Fe(CN)6]3

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  13. Explain why [Co(NH3)6]^(3+) ion is diamagnetic. [Z for Co=27]. By usin...

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  14. What is co-polymer? Give example.

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  15. What is Frenkel Defect?

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  16. Two ions A^+ and B^- have raddi 88 and 200 pm respectively. In the clo...

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  17. What is sehottky defect?

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  18. Gold (at mass 19^- at radius=0.114 nm) crystallizes in a FCC unit cell...

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  19. Calculate DeltaG^@ in kJmol^(2+) and equilibrium constant for the foll...

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  20. Differentiate between the following: Calcination and roasting

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