General Science - Mock Test 35

Question 341

In which of the following animals, is open circulatory system found?

A) Human being B) Prawn C) Toad D) Earthworm

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Question 342

In humans, how many chromosomes does a cell have?

A) 46 (23 pairs) B) 42 (21 pairs) C) 44 (22 pairs) D) 48 (24 pairs)

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Question 343

In humans, which protein transports oxygen from the lungs to the rest of body?

A) Collagen B) Hemoglobin C) Keratin D) Lectin

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Question 344

In scuba-diving, while ascending towards the water surface, there is a danger of bursting the lungs due to?

A) Gay-Lussac’s law of combining volumes B) Graham’s law of diffusion C) Archimedes’ principle D) Boyle's law

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Question 345

In vulcanization, natural rubber is heated with?

A) ) Phosphorus B) ) Carbon C) ) Sulphur D) ) Silicon

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Question 346

In vulcanization, natural rubber is heated with?

A) Phosphorus B) Carbon C) Sulphur D) Silicon

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Question 347

In which of the following activities Silicon Carbide is used?

A) Making cement and glass B) Cutting very hard substances C) Disinfecting water and ponds D) Making castes for statues

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Question 348

In which following processes light energy is converted into chemical energy?

A) Respiration B) Fermentation C) Photosynthesis D) Photorespiration

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Question 349

In photoelectric emission, the energy of emitted electron is?

A) same as that of incident photon B) larger than that of incident photon C) proportional to the intensity of incident light D) less than that of incident photon

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Question 350

In humans, which portion of brain controls hunger, thirst and body temprature?

A) Hypothalamus B) Medulla C) Thalamus D) None of these

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