IIT JEE Practice Question and Answer

Q: At what temperature (in Fahrenheit) pure water freezes? 1405 0

  • 1
    0
    Correct
    Wrong
  • 2
    17
    Correct
    Wrong
  • 3
    32
    Correct
    Wrong
  • 4
    39
    Correct
    Wrong
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Answer : 3. "32"
Explanation :

Answer: C) 32 Explanation: 32oFWe know that T(°F) = T(°C) × 1.8 + 3232(°F) = 0(°C)

Q: Cactus Spines are Modified 1771 0

  • 1
    Stems
    Correct
    Wrong
  • 2
    Branches
    Correct
    Wrong
  • 3
    Leaves
    Correct
    Wrong
  • 4
    Roots
    Correct
    Wrong
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Answer : 3. "Leaves"
Explanation :

Answer: C) Leaves Explanation: Cactus spines are also known as modified bud scales, which are also called modified leaves.   Cactus spines occur in clusters in the axil of leaves.

Q: "IPCC" stands for 1726 0

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    Indian Panel on Code Change
    Correct
    Wrong
  • 2
    Indian Penal Country Code
    Correct
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    Intergovernmental Panel on Climate Change
    Correct
    Wrong
  • 4
    Indian Policy on Climate Control
    Correct
    Wrong
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Answer : 3. "Intergovernmental Panel on Climate Change"
Explanation :

Answer: C) Intergovernmental Panel on Climate Change Explanation: IPCC stands for the Intergovernmental Panel on Climate Change. It was established in 1988 by the World Meteorological Organization and the United Nations Environment Programme.     IPCC, with respect to Chartered Accountancy, stands for Integrated Professional Competence Course. This is the second level of the CA course.

Q: Eric is the son of Tom who is the brother of Jerry who is the daughter of Sin. Doremon is the sister of Popoy who is son of Chain. Ivanka is the daughter of Popoy who is the husband of Jerry. Sin is the male person and Chain is the female person. How is Ivanka related to Eric ? 1921 0

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    Cousin sister
    Correct
    Wrong
  • 2
    Nephew
    Correct
    Wrong
  • 3
    Niece
    Correct
    Wrong
  • 4
    Daughter
    Correct
    Wrong
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Answer : 1. "Cousin sister"
Explanation :

Answer: A) Cousin sister Explanation: Since Eric's father and Ivanka's mother are Brother and sister,  => Ivanka is Eric's Aunt Daughter => Cousin Sister.

Q: The most healthy edible oil for heart is 1774 0

  • 1
    Almond Oil
    Correct
    Wrong
  • 2
    Sesame Oil
    Correct
    Wrong
  • 3
    Mustard Oil
    Correct
    Wrong
  • 4
    Olive Oil
    Correct
    Wrong
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Answer : 4. "Olive Oil"
Explanation :

Answer: D) Olive Oil Explanation:

Q: The compound interest on Rs. 8000 for 3 year at 10% p.a. is 1218 0

  • 1
    2648
    Correct
    Wrong
  • 2
    2145
    Correct
    Wrong
  • 3
    2587
    Correct
    Wrong
  • 4
    2784
    Correct
    Wrong
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Answer : 1. "2648"
Explanation :

Answer: A) 2648 Explanation: 8000 × 33.1% = 2648

Q: Who invented Bifocal Lens? 1641 0

  • 1
    John Adams
    Correct
    Wrong
  • 2
    Benjamin Franklin
    Correct
    Wrong
  • 3
    James Madison
    Correct
    Wrong
  • 4
    Thomas Jefferson
    Correct
    Wrong
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Answer : 2. "Benjamin Franklin"
Explanation :

Answer: B) Benjamin Franklin Explanation: Benjamin Franklin has long been credited with the invention of bifocal lenses and he was the first to wear bifocal lenses. He did not produce them himself but instead had some optician in London or France make them for him to overcome Presbyopia, a condition that Franklin suffered. He was tired switching between lenses for far and near sightedness. And that resulted in inventing Bifocal Lenses.

Q: The last two digits of 2151415? 2411 0

  • 1
    81
    Correct
    Wrong
  • 2
    61
    Correct
    Wrong
  • 3
    91
    Correct
    Wrong
  • 4
    51
    Correct
    Wrong
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Answer : 4. "51"
Explanation :

Answer: D) 51 Explanation: Unit digit of this expression is always 1 as the base ends with 1.  For the tenth place digit we need to multiply the digit in the tenth place of the base and unit digit of the power and take its unit digit. i.e, tenth place digit in 2151 is 5 and tenth place digit in power 415 is 1 And the units digit in the product of 5 x 1 = 5   Therefore, last two digits of 2151415 is 51.

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