The gas used in a refrigerator to cool water is___________...? Mcqs

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The gas used in a refrigerator to cool water is___________...?

(A) Nitrogen
(B) Carbon dioxide

(C) Methane
(D) Tetrafluoroethane

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Albatros is__________...?

(A) A sea bird
(B) A beetle

(C) A fruit
(D) None

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Freezing point of water is__________...?

(A) 0°C
(B) -2°C

(C) -4°C
(D) None of above

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Radon is___________...?

(A) germon radio
(B) radio active gas

(C) artificial fibre
(D) an explosive

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The common refrigerant used in domestic Refrigerator is_____________...?

(A) Neon
(B) Spirit

(C) Freon/Ammonia
(D) Methane

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In blood, the percentage of water is___________...?

(A) 75%
(B) 85%

(C) 90%
(D) 95%

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Density of Water is_________...?

(A) 897 kg/m³
(B) 997 kg/m³

(C) 1000 kg/m³
(D) 1025 kg/m³

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Mass of Earth is___________...?

(A) 5.972 × 1024 kg.
(B) 6.972 × 1024 kg

(C) 7.972 × 1024 kg
(D) 8.972 × 1024 kg

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Dry ice is ___________...?

(A) Methane hydrate
(B) Liquid Nitrogen

(C) Solid Carbon dioxide
(D) Frozen Water

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The major ingredient of leather is__________________...?

(A) Collagen
(B) Polymer

(C) Nucleic acid
(D) None of these

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Triple point of water is _________...?

(A) 271 K
(B) 272.2 K

(C) 273.16 K
(D) None of these

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The density of water is __________...?

(A) 1 g/cm3
(B) 1.5 g/cm3

(C) 2 g/cm3
(D) none of these

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The main factor for determining a region’s climate is ___________...?

(A) Latitude
(B) Temperature

(C) Longitude
(D) None of them

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Virus is__________...?

(A) unicellular
(B) multicellular

(C) acellular
(D) none of these

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Water is a ______...?

(A) Polar solvent
(B) Non-polar solvent

(C) Amphiphatic solvent
(D) Non-polar charged solvent

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