IIT JEE Practice Question and Answer

Q: Unlike Mitosis, Meiosis results in the formation of 1842 0

  • 1
    2N daughter cells
    Correct
    Wrong
  • 2
    Haploid cells
    Correct
    Wrong
  • 3
    body cells
    Correct
    Wrong
  • 4
    Diploid cells
    Correct
    Wrong
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Answer : 2. "Haploid cells"
Explanation :

Answer: B) Haploid cells Explanation: Unlike Mitosis, Meiosis results in the formation of 4 Genetically different cells.   Meiosis results in the formation of 4 Haploid daughter cells from one Diploid parent cell.

Q: An individual deposited 20% of 25% of 30% of what he had into his account with a bank. If he deposited Rs.750, how much was he having initially with him before depositing ? 1842 0

  • 1
    Rs. 38000
    Correct
    Wrong
  • 2
    Rs. 47000
    Correct
    Wrong
  • 3
    Rs. 50000
    Correct
    Wrong
  • 4
    Rs. 35000
    Correct
    Wrong
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Answer : 3. "Rs. 50000"
Explanation :

Answer: C) Rs. 50000 Explanation: Let 'x' be the amount he had in the bank. => 20/100(25/100(30/100(x))) = 750 x = 750 x 8000/120 = Rs. 50000

Q: Old name of Mahabharata? 1842 0

  • 1
    Jai Samhitha
    Correct
    Wrong
  • 2
    Vrahat Katha
    Correct
    Wrong
  • 3
    Rajatarangini
    Correct
    Wrong
  • 4
    Saritsagar Katha
    Correct
    Wrong
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Answer : 1. "Jai Samhitha"
Explanation :

Answer: A) Jai Samhitha Explanation: How the name changed has so many stories. One of them is In the beginning, Mahabharata has 8800 Slokas and after that it reached to 24000 Slokas. And then it was named as The Great Bharata i.e, Mahabharata.

Q: At an examination in which maximum marks are 500. P got 10% less than Q, Q got 25% more than R and R got 20% less than S. If P got 360 marks what percentage of marks was obtained by S ? 1842 0

  • 1
    77
    Correct
    Wrong
  • 2
    74
    Correct
    Wrong
  • 3
    80
    Correct
    Wrong
  • 4
    83
    Correct
    Wrong
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Answer : 3. "80"
Explanation :

Answer: C) 80 Explanation: Let marks obtained by S = M R's marks = 0.80M Q's marks = 1.25 (0.80M) P's marks = (0.90) (1.25) (0.80M) = 0.9M But 0.9M = 360 M = ? M = 400 Hence % of marks obtained by S = 400/500 x 100 = 80%.

Q: What sugar is found in DNA? 1841 0

  • 1
    Ribose
    Correct
    Wrong
  • 2
    Deoxyribose
    Correct
    Wrong
  • 3
    Pentose
    Correct
    Wrong
  • 4
    Sucrose
    Correct
    Wrong
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Answer : 2. "Deoxyribose"
Explanation :

Answer: B) Deoxyribose Explanation: DNA - Deoxyribonucleic acid is a type of nucleic acid. The sugar contained in it is called Deoxyribose.

Q: What is the full form of "RADAR" ? 1841 0

  • 1
    Radio Detecting and Ranging
    Correct
    Wrong
  • 2
    Region Device and Ranging
    Correct
    Wrong
  • 3
    Radio Detect and Rangs
    Correct
    Wrong
  • 4
    Radio Device and Ranging
    Correct
    Wrong
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Answer : 1. "Radio Detecting and Ranging"
Explanation :

Answer: A) Radio Detecting and Ranging Explanation:

Q: Buoyancy depends on 1841 0

  • 1
    the mass of the liquid displaced
    Correct
    Wrong
  • 2
    the mass of the body
    Correct
    Wrong
  • 3
    the depth to which the body is immersed
    Correct
    Wrong
  • 4
    the shaped of the body
    Correct
    Wrong
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Answer : 1. "the mass of the liquid displaced"
Explanation :

Answer: A) the mass of the liquid displaced Explanation: Buoyancy or Upthrust, is an upward force exerted by a fluid that opposes the weight of an immersed object. In a column of fluid, pressure increases with depth as a result of the weight of the overlying fluid.

Q: The New Chief Minister of Himachal Pradesh 2017? 1841 0

  • 1
    Anil Sharma
    Correct
    Wrong
  • 2
    Jairam Thakur
    Correct
    Wrong
  • 3
    Sudhir Sharma
    Correct
    Wrong
  • 4
    Karan Singh
    Correct
    Wrong
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Answer : 2. "Jairam Thakur"
Explanation :

Answer: B) Jairam Thakur Explanation: Jairam Thakur was sworn-in as the Chief Minister of Himachal Pradesh on 27th December 2017 after virbhadra Singh. The cabinet, including Thakur, were administered the oath of office and secrecy by Governor Acharya Dev Vrat at the historic Ridge Ground in Shimla, the capital city of Himachal Pradesh.   Jai Ram is the first chief minister from the second largest Mandi district and the 14th chief minister and sixth person to adorn the office of the chief minister.

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