Std-10 Most Imp Ch 1 Gseb L-20 રસાયણિક પ્રક્રિયાઑ અને સમીકરણ

S.L. Loney (Ex-14 Q 1-20)

S.L. Loney (Ex-14 Q 1-20)

S.L. Loney (Ex-17, Q.1 to Q20)

S.L. Loney (Ex-17, Q.1 to Q20)

The sum of series ^^(20)C0-^^(20)C1+^^(20)C2-^^(20)C3++^^(20)C 10 is 1/2 ^^(20)C 10 b. 0 c. ^^(20)C 10 d. -^^(20)C 10

The rate of first order reaction is 0.04 mol L^(-1) s^(-1) at 10 min and 0.03 mol L^(-1) s^(-1) at 20 min after initiation. Find the half life of the reaction.

The pH of a buffer solution prepared by adding 10 mL of 0.1 M CH_(3) COOH and 20 mL 0.1 M sodium acetate will be ( given : pK_(a) of CH_(3)COOH = 4.74 )