Coenzyme is—

A). Always protein

B). Often metal

C). Always inorganic compound

D). Often a vitamin


Cholesterol is one kind of—

A). Saturated fatty acid

B). Unsaturated fatty acid

C). Steroid

D). Diglyceride


Ethyl-alcohol is mixed completely with water. How ethyl alcohol is separated from the mixture?

A). By separation flannel

B). By evaporation

C). Partial-distillation

D). Evaporation of water


Combustion is a process by which—

A). Heat is produced

B). Light is produced

C). Heat and light both are produced

D). None of these


Which of the following is the best conductor of Electricity?

A). Ordinary water

B). Sea water

C). Boiled water

D). Distilled water


Human eye is how many Megapixels?

A). 1080 MP
B). 720 MP
C). 576 MP
D). 570 MP


Vitamin C is essential for___________?

A). Appetite
B). Growth & repairing of tissues
C). Muscles
D). Brain


For the generation of biogas, the materials commonly used are__________?

A). Animal wastes
B). Forest residues
C). Aquatic plants
D). None of these


Which of these is NOT an example of a renewable energy source?

A). Wind energy
B). Solar
C). Coal
D). Hydroelectric power


Which of these is NOT a form of energy?

A). Heat
B). Light
C). Temperature
D). Electricity

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