A device which converts chemical energy into electrical energy is called __________...? Mcqs

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A device which converts chemical energy into electrical energy is called __________...?

(A) motor
(B) generator

(C) moving-coil meter
(D) battery

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Blood is cleaned by __________...?

(A) Lungs
(B) Liver

(C) Heart
(D) Kidneys

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Respiratory surface possesses following property...?

(A) Thin and wet
(B) Permeable

(C) Very large
(D) All of these

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Which substance has a pH value closest to neutral...?

(A) Ammonia
(B) Blood

(C) Milk
(D) Organic juice

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An Average Hummingbird’s heart rate per minute is __________....?

(A) 500 times
(B) 1000 times

(C) more than 1000 times
(D) more than 1200 times

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Involuntary muscles in a human body are present in__________...?

(A) Brain
(B) Tongue

(C) Digestive system
(D) Limbs

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When our sun reaches the end of its red giant phase, it will turn into a___________...?

(A) Supernova
(B) White Dwarf

(C) Black Hole
(D) Neutron Star

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In a mercury thermometer, what is the range of the linear scale that the mercury rises in the tube...?

(A) 35°C - 42°C
(B) 20°C - 30°C

(C) 50°C - 60°C
(D) 80°C - 90°C

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A radioactive nuclide emits a β-particle. The atomic number (proton number) of the nucleus number of ______...?

(A) Stays the same
(B) Decreases by 2

(C) Increases by 1
(D) Decreases by 4

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Cancer can be treated by ___________...?

(A) Antibiotics & vaccines
(B) Radiotherapy & antibiotics

(C) Chemotherapy & radiotherapy
(D) Antibiotics & Chemotherapy

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