29. Which statement is correct for this reaction CH, us) +NH,(s) (A) CH, acts as

Question

29. Which statement is correct for this reaction CH, us) +NH,(s) (A) CH, acts as a base. CH, is the conjugate acid of CH. (C) NH, acts as a base. (D) NH: is the conjugate acid of NH, 30. Which is a conjugate acid-base pair in the rea (A) N He and Ho (B) NH, and (c) N,H and Naut," a) N Ha and o 31. The pH of four different solutions was determin then small amounts of strong acid (0.01 mol) we consecutively to equal volumes of each. pH after adding H Solution initial pH first addition second 5.1 1.8 3.1 1.8 6.00 6.2 From these measurements, we can conclude that be any acid was added (A) solutions 1 and 3 are buffers but solution 3 has greater buffer capacity than 1. (B) solutions 2 and 4 are buffers but solution 2 has greater buffer capacity than 4. (C) solutions 3 and 4 are buffers but solution 4 has greater buffer capacity than 3. (D) none of the four initial solutions is a buffer. 32. Equal volumes of solutions of acids and their sodium salts are mixed to prepare a buffer. The solution with closest to 5.0 was prepared by mixing (A) 1.0 x 10 M hydrochloric acid and 0.1 M Naci (Bo o 10 M benzoic acid (K. 6.3 x and 0.10 M sodium benzoate (C) 0.10 M butyric acid (A. 1.5 x 10 and 0.10 M sodium butyrate ao) 0.10 M formic acid (A. 4.3 x 10 iand o 10 M sodium formate

Explanation / Answer

29)
CH3- is accepting H+. SO it is base
NH3 acts as acid
CH4 is conjugate acid of CH4-
NH2- is conjugate base of NH3

Answer: A

30)
N2H4 is accepting H+. SO it is base and N2H5+ is its conjugate acid
so, N2H4 and N2H5+ are conjugate acid-base pair

similarly H2O and OH- are conjugate acidi- base pair

Answer: C

rest of the question are not coming as complete because picture is half cut. Please put the picture with full question that needs to be answered

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