1.The tree sends down roots from its branches to the soil is know as:
A.
Oak
B.
Pine
C.
Banyan
D.
Palm
2.Electric bulb filament is made of
A.
Copper
B.
Aluminum
C.
Lead
D.
Tungsten
3.Brass gets discoloured in air because of the presence of which of the following gases in air?
A.
Oxygen
B.
Hydrogen Sulphide
C.
Carbon dioxide
D.
Nitrogen
4.Which of the following is a non metal that remains liquid at room temperature?
A.
Phosphorous
B.
Bromine
C.
Chlorine
D.
Helium
5.Chlorophyll is a naturally occurring chelate compound in which central metal is
A.
Copper
B.
Magnesium
C.
Iron
D.
Calcium
SOLUTIONS
1.C
2.D
3.B
4.B
5.B
