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Chemistry Class 10 Chapter 10 - Acids, Bases and Salts - 11
1.
Cigarettes smokers breath in a lot of?
a) sulphur dioxide
b) none of these
c) oxides of nitrogen
d) both of these
2.
H
2
SO
4
is used in the manufacturing of?
a) drugs
b) dyes
c) paints
d) all of these
3.
Acid base indicators are?
a) colored organic compounds
b) colored inorganic compounds
c) colorless inorganic compounds
d) colorless organic compounds
4.
How much gastric juice is secreted each day in the stomach by gastric glands?
a) 6 liters
b) 4 liters
c) 2 liters
d) 8 liters
5.
Which one of the following is correct?
a) pH = -log[H
+
]
b) pH= log -[H
+
]
c) pH= log [H]
d) pH= log[H
+
]
6.
By the action of bases, the color of blue litmus turns?
a) red
b) no effect
c) yellow
d) blue
7.
G.N Lewis proposed acid base theory in?
a) 1833
b) 1933
c) 1923
d) 1823
8.
The pH of baking soda is?
a) 9
b) 7
c) 8
d) 6
9.
Sulphure dioxide is mixed with rain drops forming?
a) base rain
b) salt rain
c) acid rain
d) base snow
10.
Aquous solutions with pH 7 are?
a) basic
b) alkaline
c) neutral
d) acidic
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