IIT JEE Practice Question and Answer

Q: Nuclear Fission is caused by the impact of 926 0

  • 1
    Electron
    Correct
    Wrong
  • 2
    Neutron
    Correct
    Wrong
  • 3
    Proton
    Correct
    Wrong
  • 4
    Deutron
    Correct
    Wrong
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Answer : 2. "Neutron"
Explanation :

Answer: B) Neutron Explanation: In nuclear physics, nuclear fission is either a nuclear reaction or a radioactive decay process in which the nucleus of an atom splits into smaller parts (lighter nuclei). The fission process often produces free neutrons and releases a very large amount of energy.   Thus, The Nuclear Fission is caused by the impact of Neutrons.

Q: According to a survey, which country has become the second largest smartphone market in the world? 925 0

  • 1
    Japan
    Correct
    Wrong
  • 2
    China
    Correct
    Wrong
  • 3
    India
    Correct
    Wrong
  • 4
    USA
    Correct
    Wrong
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Answer : 3. "India"
Explanation :

Answer: C) India Explanation: According to a Report by analyst firm Canalys, India has become the second largest smartphone market in the world.

Q: What part of the body controls balance? 923 0

  • 1
    Cerebrum
    Correct
    Wrong
  • 2
    Cerebellum
    Correct
    Wrong
  • 3
    Medulla oblangata
    Correct
    Wrong
  • 4
    Amygdala
    Correct
    Wrong
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Answer : 2. "Cerebellum"
Explanation :

Answer: B) Cerebellum Explanation: The cerebellum is a small part of the brain positioned at the back of the head, where it meets the spine, which acts as the body's movement and balance control centre.     It's a lot smaller than the cerebrum at only 1/8 of its size. But it's a very important part of the brain.

Q: Which of the following is a false statement? 922 0

  • 1
    As bond order increases the strength of the bond increases
    Correct
    Wrong
  • 2
    Bond order is proportional to the bond length
    Correct
    Wrong
  • 3
    Molecules with negative bond order are highly unstable
    Correct
    Wrong
  • 4
    Bond order is inversely proportional to the bond length
    Correct
    Wrong
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Answer : 2. "Bond order is proportional to the bond length"
Explanation :

Answer: B) Bond order is proportional to the bond length Explanation: Bond order is proportional to the bond length is a False statement since Bond order is inversely proportional to the bond length.

Q: Gases in the atmosphere and their percentages? 922 0

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Answer :
Explanation :

The air around us is a mixture of gases, mainly nitrogen and oxygen, but containing much smaller amounts of water and other gases. Earth's atmosphere is composed of many gases. Their percentages by volume is given by::  78% Nitrogen, 21% Oxygen, 0.9% Argon, and 0.03% Carbon dioxide  And very small percentages of other elements.

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Answer : 3. "Neither A nor B follows"
Explanation :

Answer: C) Neither A nor B follows Explanation: There is no indication that Indian scientists are incapable of developing enzymes. There could be any number of reasons why Indian scientists used Russian enzymes. So conclusion A does not follow. In addition, cost is not discussed in the passage at all. There is no mention of a correlation between cost and extraction of proteins. Thus, conclusion B does not follow either.

Q: Who has been appointed as Chairman of Insurance Regulatory and Development Authority of India (IRDAI) and is an IAS officer? 920 0

  • 1
    TS Vijayan
    Correct
    Wrong
  • 2
    Subhash Chandra Khuntia
    Correct
    Wrong
  • 3
    Devendra Jhajharia
    Correct
    Wrong
  • 4
    T K Malhotra
    Correct
    Wrong
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Answer : 2. "Subhash Chandra Khuntia"
Explanation :

Answer: B) Subhash Chandra Khuntia Explanation: Subhash Chandra Khuntia, a 1981-batch Indian Administrative Services (IAS) officer who was a former Karnataka Chief Secretary, has been appointed as Chairman of Insurance Regulatory and Development Authority of India (IRDAI).

Q: Who Built The Suez Canal? 920 0

  • 1
    Theodore Roosevelt
    Correct
    Wrong
  • 2
    Ferdinand de Lesseps
    Correct
    Wrong
  • 3
    Robert Mills
    Correct
    Wrong
  • 4
    James Hoban
    Correct
    Wrong
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Answer : 2. "Ferdinand de Lesseps"
Explanation :

Answer: B) Ferdinand de Lesseps Explanation: The Suez Canal in Egypt, is a 101 mile long canal that connects the Mediterranean Sea with the Gulf of Suez, a northern branch of the Red Sea. It was built in 1869 by Ferdinand de Lesseps.

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