The main constituent of hemoglobin is___________...? Mcqs

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The main constituent of hemoglobin is___________...?

(A) Chlorine
(B) Iron

(C) Calcium
(D) None of these

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Instrument that measure the electric force ________...?

(A) Hygrometer
(B) Hydrometer

(C) Ammeter
(D) Voltmeter

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A slow-running pendulum clock can be speeded up by_______________...?

(A) Increasing the length of the rod
(B) Increasing the weight of the bob

(C) Reducing the length of the rod
(D) Reducing the weight of the bob

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Which disease affects infants and young children...?

(A) Scurry
(B) Marasmus

(C) Rickets
(D) Osteoporosis

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Which element is called earth maker...?

(A) Oxygen
(B) Silicon

(C) Carbon
(D) Hydrogen

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In five kingdom system virus placed in ______...?

(A) Monera
(B) Protista

(C) Plantae
(D) None of these

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Which gas is used in preparation of Soda water...?

(A) Ammonia
(B) Hydrogen

(C) Nitrogen
(D) Carbon Dioxide

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What is the main composition of the sun...?

(A) Oxygen and Ammonia
(B) Hydrogen and Helium

(C) Hydrogen and Oxygen
(D) Methane and Hydrogen

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A D.C motor converts _______...?

(A) Mechanical energy into electrical energy
(B) Mechanical energy into chemical energy

(C) Electrical energy into mechanical energy
(D) Electrical energy into chemical energy

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One of the following countries produces maximum energy from atomic reactors...?

(A) France
(B) USA

(C) UK
(D) none

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