1 .
Which of the following processes takes place inside a biogas plant?
A.  Hydrogenation
B.  Multiplication
C.  Reduction
D.  Fermentation
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2 .
Which of the following chemicals is used to preserve food items?
A.  Sodium Benzoate
B.  Sodium Chloride
C.  Sodium Hydroxide
D.  Sodium Carbonate
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3 .
Which of the following is being consumed by the athletes for the sake of instant energy?
A.  Vitamin C
B.  Sodium Chloride
C.  Calcium
D.  Sucrose
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4 .
Which of the following substances consists of only one element?
A.  Sand
B.  Water
C.  Glass
D.  Diamond
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5 .
Who among the following has been credited for the discovery of blood groups of human beings?
A.  GJ Mendel
B.  Hugo de Vries
C.  William Harvey
D.  Karl Landsteiner
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6 .
Formation of a mirage is an optical illusion which takes place due to:
A.  Polarisation of light
B.  Refraction of light
C.  Total internal reflection
D.  Scattering of light
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7 .
Why is the wire in an electric fitting earth?
A.  To reduce the power consumption
B.  To prevent the current from being wasted
C.  To facilitate the passage of current in case of short circuit
D.  All the above
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8 .
Chemotherapy deals with which of the following fields?
A.  Use of chemicals in warfare
B.  Use of chemicals in industries
C.  Use of chemicals in the treatment of human diseases
D.  All the above
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9 .
Alternating Current (AC) changes:
A.  Its magnitude and direction both
B.  Its magnitude only
C.  Its direction only/
D.  None of the above
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10 .
Name the country which has become the first country of the world to legalized marijuana
A.  Uruguay
B.  Paraguay
C.  Ukraine
D.  Vietnam
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