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Chemistry Class 10 Chapter 10 - Acids, Bases and Salts - 12
1.
NaOH is a(n)?
a) base
b) acid
c) salt
d) none of these
2.
How many replaceable H-atoms are present in phosphoric acid?
a) 5
b) 4
c) 3
d) 2
3.
The pH of milk of magnesia is?
a) 8
b) 11
c) 9
d) 10
4.
Formula of hydrochloric acid is?
a) H
2
SO
4
b) KOH
c) HNO
3
d) HCl
5.
The substance that ionizes in water to produce H+ ions is kown as?
a) none of these
b) base
c) salt
d) acid
6.
Which one of the following is Potassium hydroxide?
a) KOH
b) NaOH
c) None
d) COH
7.
The optimum pH range of a swimming pool is?
a) 9 to 11
b) 4 to 7
c) 7.2 to 7.6
d) 7.2 to 9
8.
Which one of the following bonds is formed in a Lewis acid-base reaction?
a) covalent bond
b) ionic bond
c) coordinate covalent bond
d) all of these
9.
The pH of black coffee is?
a) 7
b) 0
c) 6
d) 5
10.
The pH of lemon juice is?
a) 3
b) 2
c) 5
d) 4
11.
The pH of Sea water is?
a) 10
b) 5
c) 8
d) 9
12.
The scale from 0 to 14 to describe the concentration of H+ ions in a solution is known as?
a) equilibrium constant
b) reaction constant
c) reaction scale
d) pH scale
13.
Arrhenius theory mainly applies to?
a) aquous solutions
b) none of these
c) gases
d) solids
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