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What are Lewis acids and bases? Give two...

What are Lewis acids and bases? Give two example for each.

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Lewis acid - A Lewis is a positive ion (or) an electron deficient molecule which accepts an electron pair.
Eg: `BF_3, AICI_3,BeF_2.`
Lewis Base - A Lewis base is a anion (or) neutral molecule with at least one lone pair of electrons that can donate an electron pair.
Eg : `NH_3, R-NH_2,F^-,CI^- .`
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SURA PUBLICATION-IONIC EQUILIBRIUM-EXERCISE (ANSWER THE FOLLOWING QUESTIONS)
  1. What are Lewis acids and bases? Give two example for each.

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  2. Discuss the Lowery - Bronsted concept of acids and bases.

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  3. Identify the conjugate acid base pair for the following reaction in aq...

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  4. Indentify the conjugate acid base pair for the following reaction in a...

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  5. Indentify the conjugate acid base pair for the following reaction in a...

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  6. Account for the acidic nature of HCIO4. In terms of Bronsted - Lowry t...

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  7. When aqueous ammonia is added to CuSO4 solution, the solution turns de...

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  8. The concentration of hydroxide ion in a water sample is found to be 2....

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  9. A lab assistant prepared a solution by adding a calculated quantity of...

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  10. Calculate the pH of 0.04 M HNO3 Solution.

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  11. (i)Define solubility product. (ii) What is the pH of an aqueous sol...

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  12. Define the ionic product of water. Give its value at room temperature.

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  13. Explain common ion effect with an example.

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  14. State Ostwald’s dilution law.

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  15. Define pH.

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  16. Calculate the pH of 1.5xx10^(-3) M solution of Ba(OH)2.

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  17. 50 ml of 0.05 M HNO3is added to 50 ml of 0.025 M KOH. Calculate the pH...

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  18. The K(a) value for HCN is 10^(-9) . What is the pH of 0.5 M HCN solut...

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  19. Calculate the extent of hydrolysis and the pH of 0.1 M ammonium acetat...

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  20. Derive an expression for the hydrolysis constant and degree of hydroly...

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