IMAT 2016 Q41 (Chemistry)

Practice Question Solving
1

I can’t figure out this question, could someone help? The answer is B. Thanks in advance!

Which of the following substances will form an alkaline solution when dissolved in water?

  1. Na2CO3
  2. NaCl
  3. NaHSO4

A. 1, 2 and 3
B 1 only
C 1 and 2 only
D 2 and 3 only
E 1 and 3 only

1 Like
2

Hi!

  1. will make 2NaOH + H2CO3 so a SB + WA so the pH will be >7
  2. dissociate but don’t react so pH stays =7
  3. will make NaOH + H2SO4 so SB + SA so the pH will cancel out =7

(SA=strong acid WB=weak base)
Hoipe this helps!

3 Likes
3

Thank you so much! Your explanation was really clear :slight_smile: