1.The reaction between nitrogen dioxide and water is a
A.decomposition
B.combustion
C.disproportionation
D.neutralization
2.Which of the following parts of the sun is easily visible only during a total solar eclipse?
A.core
B.photosphere
C.sunspots
D.corona
3.Which instrument is used in submarine to see the objects above sea level ?
A.Pykometer
B.Polygraph
C.Photometer
D.Periscope
4.Which of the following is not an allotropic form of carbon?
A.graphite
B.diamond
C.carbide
D.buckminsterfullerene
5.Pollination by birds is called
A.autogamy
B.ornithophily
C.entomophily
D.anemophily
6.The primary commercial use of nitric acid is
A.in the manufacture of plastics
B.in the manufacture of explosives
C.in pool water maintenance
D.in the manufacture of fertilizers
7. Chemically, lime water is
A.Calcium hydroxide
B.Sodium carbonate
C.Sodium hydroxide
D.Calcium carbonate
8.Radian is used to measure
A.Temperature
B.Intensity of Flame
C.Angle
D.Solid Angle
9.What is the second most common element in the universe? –
A.Si
B.Se
c.Zn
D.Fe
10.What is unit of Work and Energy ?
A.Joule
B.kilogram
C.amphere
D.meter
Answers:-
1.C
2.D
3.D
4.C
5.B
6.D
7.A
8.C
9.A
10.A
A.decomposition
B.combustion
C.disproportionation
D.neutralization
2.Which of the following parts of the sun is easily visible only during a total solar eclipse?
A.core
B.photosphere
C.sunspots
D.corona
3.Which instrument is used in submarine to see the objects above sea level ?
A.Pykometer
B.Polygraph
C.Photometer
D.Periscope
4.Which of the following is not an allotropic form of carbon?
A.graphite
B.diamond
C.carbide
D.buckminsterfullerene
5.Pollination by birds is called
A.autogamy
B.ornithophily
C.entomophily
D.anemophily
6.The primary commercial use of nitric acid is
A.in the manufacture of plastics
B.in the manufacture of explosives
C.in pool water maintenance
D.in the manufacture of fertilizers
7. Chemically, lime water is
A.Calcium hydroxide
B.Sodium carbonate
C.Sodium hydroxide
D.Calcium carbonate
8.Radian is used to measure
A.Temperature
B.Intensity of Flame
C.Angle
D.Solid Angle
9.What is the second most common element in the universe? –
A.Si
B.Se
c.Zn
D.Fe
10.What is unit of Work and Energy ?
A.Joule
B.kilogram
C.amphere
D.meter
Answers:-
1.C
2.D
3.D
4.C
5.B
6.D
7.A
8.C
9.A
10.A
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