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Download in pdf Chemistry multiple choice questions(mcqs) & answers. These general awareness quiz objective questions answers include mcqs on diamond, Silk fiber, ozone hole etc.
(41)
Silk fiber chemically is:
[A]
Fat
[B]
Protein
[C]
Cellulose
[D]
Carbohydrate
Comment
(42)
Formation of ozone hole is maximum over
[A]
India
[B]
Africa
[C]
Europe
[D]
Antarctica
Comment
(43)
Global warming is mainly due to accumulation of
[A]
Carbon monoxide
[B]
Carbon dioxide
[C]
Oxide of sulphur
[D]
Oxides of nitrogen
Comment
(44)
Baryllium Sulphate is less soluble in water due to
[A]
Ionic bond
[B]
low inflammable energy
[C]
high inflammable energy
[D]
low energy of dissociation
Comment
(45)
Diamond is harder than graphite because of
[A]
Difference of layers of atom
[B]
Tetrahedral structure of diamond
[C]
Difference of crystalline structures
[D]
None of these
Comment
(46)
What is the chemical name for ‘baking soda’
[A]
Sodium nitrate
[B]
Sodium nitrite
[C]
Sodium carbonate
[D]
Sodium bicarbonate
Comment
(47)
PVC is obtained by the polymerization of
[A]
Styrene
[B]
Propane
[C]
Acetylene
[D]
Vinyl chloride
Comment
(48)
The polymerization of which of the following is used in manufacturing of polythene in industry?
[A]
Ethylene
[B]
Acetylene
[C]
Styrene
[D]
Methane
Comment
(49)
Bleaching action of moist sulphur dioxide is because of its
[A]
Reducing power
[B]
Oxidizing power
[C]
Acidic property
[D]
Basic property
Comment
(50)
In which of the following substance all carbon atoms are quaternary in nature
[A]
Teflon
[B]
Graphite
[C]
Diamond
[D]
Napthaline
Comment
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