Acid-Base Chemistry

MCQ's Test For Chapter 9 "Acid-Base Chemistry"

Try The MCQ's Test For Chapter 9 "Acid-Base Chemistry"

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Acid-Base Chemistry

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Question # 1

pH of 10-9 M HCl is

Question # 2

Which is more acidic pH3 or pH 5?

Question # 3

A substance that changes color with pH is a

Question # 4

Which is a weak acid

Question # 5

If Ka of acetic acid is 1.8 X 10-5, IT IS

Question # 6

If the concentration of Cl- ion in a solution is increaed, the soubility of silver chloride will

Question # 7

The pH of distilled water at 25 oC is

Question # 8

A salt from stron acid+weak base gives.

Question # 9

The conjugate acid of NH3 is

Question # 10

Which of the following pair form a buffer solution .

Question # 11

The definition of amphoteric is

Question # 12

Which of the following is a weak base.

Question # 13

Acid rain is mainly due to

Question # 14

CH3COONA is a salt of.

Question # 15

The conjugate base fo H2CO3 is

Question # 16

Which of the following is a tribasic acid.

Question # 17

Which one is a Lewis base.

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FSc Part 1 Chemistry (New Book) Chapter 9 Important MCQ's

Sr.# Question Answer
1 A salt from stron acid+weak base gives.
A. Neutral solution 
B. Acidic solution 
C. Precipitate
D. Basic solution 
2 The pKa value for HCOOH is.
A. 4.74
B. 3.78
C. 4.78
D. 4.24
3 Which is more acidic pH3 or pH 5?
A. Both same
B. pH 3
C. pH5
D. Cannot say
4 Acid rain is mainly due to
A. SO3 and NO3
B. CO2
C. H2
D. CH4
5 The conjugate acid of NH3 is
A. NH4
B. NH2
C. NO3
D. N2H4
6 The pH of a buffer doesn't chagne much when
A. Diluted with water
B. Acid or base is added
C. Heated
D. Temp changes
7 HCl +NH3------------------- NH4Cl shows
A. Redox reaction
B. Acid base reaction
C. Bronsted acid base
D. Precipitation
8 Which is amphoteric
A. H2O
B. HCl
C. NaOH
D. NH3
9 Which of the following is a diprotic acid
A. HNO3
B. H2SO4
C. HCl
D. CH3COOH
10 Strong acids completely dissociate in water because.
A. High solubility
B. High Ka
C. Forms complex
D. Low Ka

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