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UNIT TEST-8, , ‘SUB: CHEMISTRY, CLASS : XII, , , , , , PHYSICAL AND CHEMICAL EQUILIBRIUM, , , , , , |LANSWERS ANY EIGHT QUESTIONS., , 1. Write the limitations of arhenius concept of acids and bases., (CUPVOREPIOWEPTOPESPnaittintliindey(f) Zi, quae?, , 4. What is common ion effect ?. Give an example, , 5. Define p™, , 6. Define solubility product., , 7. Define tonic product of water . Give its value at room temperature., , 8 .What is mean by lewis acid and bases ? with example, , cpr ememrmmllan ns |, (coiinaanaetianablel TY cr, , ILANSWERS ALL THE QUESTIONS., 9. Derive Henderson- Hasselbalch equation., , 10. Write the expression for the solubility product of HgsCl, and Cas(PO,)2, 11. Define an expression for Oswald’s dilution law, 12. Derive the Relation between P" and P™, , , , 8x2=16, , 8x3=24, , ee, , ee, , 14. Find p™ of the buffer solution that contanining 0.18 mol lit’ acetic acid and 0.20 mol lit sodium acetate, , -ka value of acetic acid is 1.8 x 10°, 15, What is buffer solution ? .Mentions the two type of buffer solution., 16, Discuss the Lowry ~Bronsted concept of acid and bases, , -15 MINS, , 14
