Science MCQ Questions with answers

Here Important Science MCQ questions are added which are frequently asked in almost all the examinations. You can check the correct answer of any question on clicking the show answer button or on option itself. The Correct answer will be displayed below. You can share any question with your friends on whatsapp by tapping whatsapp button.

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Learn Science MCQs [Page 203 ]

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Ram Sharma • 193.88K Points
Coach Science

Q) What is the max. Water Vapour content in the atmosphere -

(A) 2 to 3 per cent
(B) 4 to 5 per cent
(C) 5 to 6 per cent
(D) 3 to 4 per cent

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Correct Answer - Option (D)

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R

Ram Sharma • 193.88K Points
Coach Science

Q) Now-a-days yellow lamps are frequently used as street lights. Which among the given gases is used in these lamps -

(A) Sodium
(B) Nitrogen
(C) Hydrogen
(D) Neon

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Correct Answer - Option (A)

No Explanation found. Add Explanation and get +2 points.

R

Ram Sharma • 193.88K Points
Coach Science

Q) Pressure Cooker cooks faster as

(A) higher temperature is attained for cooking
(B) the material of the cooker is a good conductor
(C) it cooks the food at low pressure
(D) boiling point decreases with rise of pressure

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Correct Answer - Option (A)

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R

Ram Sharma • 193.88K Points
Coach Science

Q) Silver halides are used in photographic plates as they are

(A) reduced by light
(B) oxidised in air
(C) totally colourless
(D) soluble in hyposolution

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Correct Answer - Option (A)

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R

Ram Sharma • 193.88K Points
Coach Science

Q) What is the most common salt in sea water -

(A) Sodium chloride
(B) Potassium chloride
(C) Calcium carbonate
(D) Magnesium sulphate

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Correct Answer - Option (A)

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R

Ram Sharma • 193.88K Points
Coach Science

Q) Sour milk contains

(A) acetic acid
(B) lactic acid
(C) tartaric acid
(D) citric acid

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Correct Answer - Option (B)

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R

Ram Sharma • 193.88K Points
Coach Science

Q) Energy that is produced commercially from coal is called

(A) Potential energy
(B) Light energy
(C) Thermal energy
(D) Kinetic energy

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Correct Answer - Option (C)

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R

Ram Sharma • 193.88K Points
Coach Science

Q) Which among the given is a metallic ore -

(A) Feldspar
(B) Quartz
(C) Galena
(D) Mica

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Correct Answer - Option (C)

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R

Ram Sharma • 193.88K Points
Coach Science

Q) The technique of calculating the age of fossil organisms is

(A) Counting the annual rings
(B) Micromanipulation
(C) Radiocarbon dating
(D) Electroporation

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Correct Answer - Option (C)

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R

Ram Sharma • 193.88K Points
Coach Science

Q) The addition of gypsum to portland cement helps in:

(A) preventing rapid setting of cement
(B) rapid setting of cement
(C) increasing the strength of cement
(D) reduction in the cost of cement

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Correct Answer - Option (A)

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