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Chemistry Class 10 Chapter 10 - Acids, Bases and Salts - 10
1.
Which one of the following is Not an acid?
a) cola drink
b) washing soda
c) venigar
d) toilet bowel cleaner
2.
By the action of bases, the color of red litmus turns?
a) red
b) no effect
c) blue
d) white
3.
A base is a?
a) proton donor
b) both b and c
c) proton acceptor
d) electron acceptor
4.
Which one of the following is a hydroxide ion?
a) H
b) H
3
O
c) OH
-
d) none of these
5.
What is used to measure pH of a solution?
a) common paper
b) wood
c) pH paper
d) steel
6.
A salt containing replaceable OH group is known as?
a) normal salt
b) soda ash
c) basic salt
d) acidic salt
7.
Who proposed a method to express a small concentration of H
+
and OH
+
ions by pH or pOH?
a) Bronsted
b) Lewis
c) Sorenson
d) Arrhenius
8.
Which one of the following indicator is in basic range?
a) methyl orange
b) methyl red
c) phenolphthalein
d) methyl violet
9.
Which one of the following is pH indicator?
a) methyl red
b) all of these
c) phenolphthalein
d) bromothymol blue
10.
Cigarettes smokers are at high risk of suffering from?
a) all of these
b) bronchitis
c) asthama
d) cold
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