Question: Which Vitamin do we get from sun ray?
-
a.vitamin A
-
b.vitamin C
-
c.vitamin E
-
d.vitamin D
-
e.vitamin K
Answer: d
Question: The response of plants to light is known as--
-
a.Chemotropism
-
b.Thigmotropism
-
c.Phototropism
-
d.Hydrotropism
-
e.None of these
Answer: c
Question: Every molecule of water contains-- Oxygen and --Hydrogen.
-
a.2, 1
-
b.1, 2
-
c.3, 4
-
d.2, 2
-
e.None of these
Answer: b
Question: Which of the following is not a gas?
-
a.Helium
-
b.Mercury
-
c.Oxygen
-
d.Nitrogen
-
e.Hydrogen
Answer: b
Question: What is the name given to molten rocks that are erupted by a volcano?
-
a.lava
-
b.slate
-
c.firestone
-
d.marble
-
e.none
Answer: a
Question: To glavanise iron, iron is coated with which of the followiing?
-
a.galena
-
b.silver
-
c.aluminium
-
d.zinc
-
e.None
Answer: d
Question: Which of the following is not a radio active metrial?
-
a.plutonium
-
b.sodium
-
c.uranium
-
d.radium
-
e.None
Answer: b
Question: Among the following which is the purest form of iron?
-
a.grey cast iron
-
b.wrought iron
-
c.steel
-
d.white cast iron
-
e.None of these
Answer: b
Question: Which one of the following substances undergoes chemical change on heating?
-
a.lead nitrate
-
b.platinum wire
-
c.sodium chloride
-
d.silica
-
e.None
Answer: a
Question: On which principle does the tape recorder function?
-
a.Boyleis law
-
b.electromagnetic induction
-
c.eletrovalency
-
d.All of these
-
e.None of these
Answer: b
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