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Chemistry 10th Class English Medium Unit 10 Online Test MCQs With Answers
Question # 1
__________ acid cause acidity of stomach.
Choose an answer
Oxalic acid
Hydrochloric acid
Sulphuric acid
Nitric Acid
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Question # 2
Which acid is used for etching designs on copper plates?
Choose an answer
H
2
SO
4
HNO
3
HCl
CH
3
COOH
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Question # 3
___________ is not an acid:
Choose an answer
HCl
NH
3
H
2
CO
3
H
2
SO
4
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Question # 4
Which one is used for alkaline batteries?
Choose an answer
NaOH
Ca(OH)
2
KOH
Mg(OH)
2
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Question # 5
Which one is not a characteristic of an acid:
Choose an answer
it turns red litmus blue
it reacts with base to form salt and water
Its aqueous solution conduct electric current
it has sour taste
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Question # 6
Which base is more corrosive?
Choose an answer
NH
4
OH
NaOH
Ca(OH)
2
AL(OH)
2
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Question # 7
When acids react with metals which gas is evolved?
Choose an answer
H
2
O
2
Cl
2
N
2
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Question # 8
Mallic acid is present in
Choose an answer
Apple
Feats
String of bees
Urine
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Question # 9
A conjugate base is a specie formed by donating a.
Choose an answer
Proton
Electron pair
Neutron
Electron
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Question # 10
The colour of litmus in a strong basic solution become.
Choose an answer
Yellow
Blue
Red
Colourless
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Question # 11
Which of following is not amphoteric?
Choose an answer
H
2
O
NH
3
HCO
3
SO
4
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Question # 12
The color of Fe(OH)
2
ppt is.
Choose an answer
White
Brown
Muddy green
Blue
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Question # 13
Lavoisier named binary compounds of oxygen acids in .
Choose an answer
1787
1790
1815
1828
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