IIT JEE Practice Question and Answer

Q: Which structural formula represents a dipole? 2295 0

  • 1
    4
    Correct
    Wrong
  • 2
    3
    Correct
    Wrong
  • 3
    2
    Correct
    Wrong
  • 4
    1
    Correct
    Wrong
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Answer : 4. "1"
Explanation :

Answer: D) 1 Explanation: What is Dipole :   when two atoms in a molecule have substantially different electronegativity: One atom attracts electrons more than another, becoming more negative, while the other atom becomes more positive.

Q: Sound travels fastest in 1860 0

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    Vacuum
    Correct
    Wrong
  • 2
    Air
    Correct
    Wrong
  • 3
    Glass
    Correct
    Wrong
  • 4
    Water
    Correct
    Wrong
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Answer : 3. "Glass"
Explanation :

Answer: C) Glass Explanation: Sound is a mechanical vibration and needs a medium for propagation. The higher the density of the medium, the faster the sound travels. So, sound cannot travel through vacuum.   As the sound travels faster in solids than liquids and gases, sound travels faster in the glass than Air and water.

Q: What gets broken without being held? 1703 0

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Answer :
Explanation :

Yes, a promise can be broken without being held.

Q: From a group of 7 boys and 6 girls, five persons are to be selected to form a team, so that at least 3 girls are there in the team. In how many ways can it be done? 1639 0

  • 1
    427
    Correct
    Wrong
  • 2
    531
    Correct
    Wrong
  • 3
    651
    Correct
    Wrong
  • 4
    714
    Correct
    Wrong
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Answer : 2. "531"
Explanation :

Answer: B) 531 Explanation: Given in the question that, there are 7 boys and 6 girls.  Team members = 5 Now, required number of ways in which a team of 5 having atleast 3 girls in the team =  6C3  x 7C2  + 6C4 x 7C1 + 6C5= 6x5x43x2x1 x 7x62x1 + 6x5x4x34x3x2x1 x 7 + 6x5x4x3x25x4x3x2x1= 420 + 105 + 6= 531.

Q: Which term is a type of detail? 1783 0

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    chronology
    Correct
    Wrong
  • 2
    prose
    Correct
    Wrong
  • 3
    style
    Correct
    Wrong
  • 4
    statistic
    Correct
    Wrong
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Answer : 1. "chronology"
Explanation :

Answer: A) chronology Explanation: In chronology, the sequence of events from the latest to the oldest events or vice versa is laid. In this case, the details of how a particular event or place or thought developed through time is detailed in a chronology.    Hence, the term chronology is a type of detail.

Q: Financial management process deals with 9828 0

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    Financing decisions
    Correct
    Wrong
  • 2
    Investments
    Correct
    Wrong
  • 3
    Both A & B
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 1. "Financing decisions"
Explanation :

Answer: A) Financing decisions Explanation: Financial management refers to the efficient and effective management of money (funds) in such a manner as to accomplish the objectives of the organization. It is the specialized function directly associated with the top management.   Hence, it deals with Financial decisions.

Q: Which of the following are involved directly in pulmonary circulation? 1879 0

  • 1
    left ventricle, aorta, and inferior vena cava
    Correct
    Wrong
  • 2
    right atrium, aorta, and left ventricle
    Correct
    Wrong
  • 3
    superior vena cava, right atrium, and left ventricle
    Correct
    Wrong
  • 4
    right ventricle, pulmonary artery, and left atrium
    Correct
    Wrong
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Answer : 4. "right ventricle, pulmonary artery, and left atrium"
Explanation :

Answer: D) right ventricle, pulmonary artery, and left atrium Explanation: Right ventricle (which pumps blood to the lungs), pulmonary artery (which carries blood to the lungs), and left atrium (which receives blood from the lungs) are involved directly in pulmonary circulation.

Q: Arjuna award is given for 1730 0

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    Excellence in sports
    Correct
    Wrong
  • 2
    Excellent service during emergency
    Correct
    Wrong
  • 3
    Bravery in the battle field
    Correct
    Wrong
  • 4
    Excellence in archery
    Correct
    Wrong
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Answer : 1. "Excellence in sports"
Explanation :

Answer: A) Excellence in sports Explanation: The Arjuna Awards are given by the Ministry of Youth Affairs and Sports, Government of India to recognize outstanding achievement in sports. Started in 1961, the award carries a cash prize of ₹ 500,000, a bronze statue of Arjuna and a scroll.

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