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SET-1
SET-2
SET-3
SET-4
SET-5
SET-6
1.
Sour taste of coca cola is due to
A.
Hydrochloric acid
B.
Formic acid
C.
Acetic acid
D.
Phosphoric acid
Answer :
Answer & Solution
2.
Formic acid is produced by _____
A.
Red ants
B.
Mosquitoes
C.
White ants
D.
Cockroaches
Answer :
Answer & Solution
3.
litmus is obtained form
A.
Lichen
B.
A fungus
C.
A bacterium
D.
An alga
Answer :
Answer & Solution
4.
Aluminium oxide is a/an?
A.
Amphoteric
B.
Acid oxide
C.
Basic oxide
D.
Netural oxide
Answer :
Answer & Solution
5.
The acid which fails to liberate carbon dioxide from Sodium bicarbonate is
A.
Carbonic acid
B.
Acetic acid
C.
Sulphuric acid
D.
Formic acid
Answer :
Answer & Solution
6.
Which chemical is injected into a person’s body when an ant bites?
A.
Tartaric acid
B.
Citric acid
C.
Formic acid
D.
Acetic acid
Answer :
Answer & Solution
7.
The natural indicator is
A.
Methyl orange
B.
Phenolphthalein
C.
Litmus
D.
All of these
Answer :
Answer & Solution
8.
The pH of Lemon Juice is expected to be
A.
More than seven
B.
equal to seven
C.
Not can be predicted
D.
Less than seven
Answer :
Answer & Solution
9.
The drying of milk of lime(White washing)is due to the action of _____
A.
Oxygen in air
B.
Hydrogen in air
C.
CO2 in air
D.
CO in air
Answer :
Answer & Solution
10.
Sour taste of lemon is due to the presence of which of the following?
A.
Citric acid
B.
Acetic acid
C.
Oxalic acid
D.
Formic acid
Answer :
Answer & Solution
11.
The base used as an antacid is
A.
Magnesium Hydroxide
B.
Silver hydroxide
C.
Calcium Hydroxide
D.
Barium Hydroxide
Answer :
Answer & Solution
12.
PH scale range from
A.
0-7
B.
0-14
C.
8-14
D.
None of these
Answer :
Answer & Solution
13.
If some drops of conc sulphuric acid is added to that substance then turns to black, which of the following is that substance?
A.
Sugar
B.
Food salt
C.
Vinegar
D.
Alcohol
Answer :
Answer & Solution
14.
Aqua regia is a mixture of the following in the ratio 1:3 by volume
A.
Conc HCl and HNO3
B.
Conc HCl and conc HNO3
C.
Conc HNO3 and conc HCl
D.
Conc HNO3 and conc H2SO4
Answer :
Answer & Solution
15.
Among these which one is not a Base?
A.
B(OH)2
B.
Ca(OH)2
C.
Ba(OH)2
D.
Sr(OH)2
Answer :
Answer & Solution
16.
What is the pH of water
A.
1
B.
3
C.
5
D.
7
Answer :
Answer & Solution
17.
Vinegar formed by the fermentation of cane sugar contains?
A.
Citric acid
B.
Acetic acid
C.
Palmitic acid
D.
Lactic acid
Answer :
Answer & Solution
18.
Which one of the following is used to dissolve noble metals?
A.
Sulphuric acid
B.
Aqua regia
C.
Nitric acid
D.
Hydrochloric acid
Answer :
Answer & Solution
19.
Sodium carbonate is basic salt, because it is a salt of
A.
Weak acid and strong base
B.
Strong acid and weak base
C.
weak acid and weak base
D.
Strong acid and strong base
Answer :
Answer & Solution
20.
PH value of Human blood is
A.
6.45- 6.55
B.
4.0-4.5
C.
8.25-8.35
D.
7.35-7.45
Answer :
Answer & Solution
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