General Science Questions

Q:

Potassium Permanganate is used for purifying drinking water, because

A) it is a sterilising agent B) it dissolves the impurities of water
C) it is a reducing agent D) it is an oxidising agent
 
Answer & Explanation Answer: D) it is an oxidising agent

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Q:

Which of the following parts of the sun is easily visible only during a total solar eclipse? 

A) core B) photosphere
C) sunspots D) corona
 
Answer & Explanation Answer: D) corona

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Q:

Which one of the following types of laser is used in laser printers?

A) Semiconductor laser B) Dye laser
C) Gas laser D) Excimer laser
 
Answer & Explanation Answer: A) Semiconductor laser

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Q:

Which of the following has got more heat capacity?

A) Iron piece B) Water
C) Gold piece D) Benzene
 
Answer & Explanation Answer: B) Water

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Q:

The gases used in different types of welding would include

A) oxygen and hydrogen B) oxygen and acetylene
C) oxygen, acetylene and argon D) oxygen, hydrogen, acetylene and nitrogen
 
Answer & Explanation Answer: B) oxygen and acetylene

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Q:

The radioactive element most commonly detected in humans is

A) potassium-40 B) cobalt-60
C) iodine-131 D) plutonium-238
 
Answer & Explanation Answer: A) potassium-40

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Q:

Chilling is most commonly practiced by

Answer

Chilling is most commonly practiced by Food Handlers like restaurents, hotels,...


 


 Chilling_is_most_commonly_practiced_by1556260019.jpg image







    • Chilling or Cooling is nothing but preserving the food in a cool storage like refrigerators.



 

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Subject: General Science Exam Prep: CAT , Bank Exams , AIEEE
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Q:

When a gas is turned into a liquid, the process is called

A) condensation B) evaporation
C) deposition D) sublimation
 
Answer & Explanation Answer: A) condensation

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