IIT JEE Practice Question and Answer

Q: In how many ways word of 'GLACIOUS' can be arranged such that 'C' always comes at end? 1683 0

  • 1
    3360
    Correct
    Wrong
  • 2
    5040
    Correct
    Wrong
  • 3
    720
    Correct
    Wrong
  • 4
    1080
    Correct
    Wrong
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Answer : 2. "5040"
Explanation :

Answer: B) 5040 Explanation: Given word is GLACIOUS has 8 letters. => C is fixed in one of the 8 places Then, the remaining 7 letters can be arranged in 7! ways = 5040.

Q: Find the odd man out of the following number sequence? 3, 5, 13, 43, 167 1441 0

  • 1
    167
    Correct
    Wrong
  • 2
    43
    Correct
    Wrong
  • 3
    13
    Correct
    Wrong
  • 4
    5
    Correct
    Wrong
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Answer : 1. "167"
Explanation :

Answer: A) 167 Explanation: The given number series is 3, 5, 13, 43, 167 3 3 x 1 + 2 = 5 5 x 2 + 3 = 13 13 x 3 + 4 = 43 43 x 4 + 5 = 177 (not equal to 167)   Hence, the odd number in the given number sequence is 167.

Q: Which element is a member of the halogen family? 1315 0

  • 1
    Chlorine
    Correct
    Wrong
  • 2
    Bromine
    Correct
    Wrong
  • 3
    Iodine
    Correct
    Wrong
  • 4
    All of the above
    Correct
    Wrong
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Answer : 4. "All of the above"
Explanation :

Answer: D) All of the above Explanation: The halogens make up group 17 in the periodic table. They are five elements: Chlorine (Cl) Fluorine (F) Bromine (B) Iodine (I) Astatine (At). But astatine is not purely halogen as it is radioactive.

Q: What type of macromolecule is DNA? 1131 0

  • 1
    Proteins
    Correct
    Wrong
  • 2
    Carbohydrates
    Correct
    Wrong
  • 3
    Nucleic acids
    Correct
    Wrong
  • 4
    All of the above
    Correct
    Wrong
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Answer : 3. "Nucleic acids"
Explanation :

Answer: C) Nucleic acids Explanation: DNA stands for Deoxyribo nucleic acid. It is a nucleic acid made up of monomeric unit called Nucleotide. A nucleotide consist of - a) Sugar - Deoxyribose in DNA ( ribose in RNA) b) An organic base- Adenine, cytosine, guanine.

Q: Which statement describes the amount of rainfall in grasslands? 1465 0

  • 1
    more than deserts
    Correct
    Wrong
  • 2
    less than forests
    Correct
    Wrong
  • 3
    Both A & B
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 3. "Both A & B"
Explanation :

Answer: C) Both A & B Explanation:

Q: Who invented the high level language C? 2234 0

  • 1
    Dennis M. Ritchie
    Correct
    Wrong
  • 2
    Donald Kunth
    Correct
    Wrong
  • 3
    Niklaus Writh
    Correct
    Wrong
  • 4
    Seymour Papert
    Correct
    Wrong
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Answer : 1. "Dennis M. Ritchie"
Explanation :

Answer: A) Dennis M. Ritchie Explanation: C, an early systems programming language, was developed by Dennis Ritchie and Ken Thompson at Bell Labs between 1969 and 1973.

Q: An object at rest may have 1359 0

  • 1
    Momentum
    Correct
    Wrong
  • 2
    Potential energy
    Correct
    Wrong
  • 3
    Velocity
    Correct
    Wrong
  • 4
    Kinetic energy
    Correct
    Wrong
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Answer : 2. "Potential energy"
Explanation :

Answer: B) Potential energy Explanation: An object at rest may have Potential energy.

Q: Which of the following is not a Fundamental Right? 1005 0

  • 1
    Right To Freedom Of Speech And Expression
    Correct
    Wrong
  • 2
    Right To Employment
    Correct
    Wrong
  • 3
    Right To Equality
    Correct
    Wrong
  • 4
    Right To Education
    Correct
    Wrong
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Answer : 2. "Right To Employment"
Explanation :

Answer: B) Right To Employment Explanation: Fundamental Rights are the basic rights of the common people and inalienable rights of the people who enjoy it under the charter of rights of Constitution of India.   The six fundamental rights recognised by the Indian constitution are:: the right to equality, right to freedom, right against exploitation, right to freedom of religion, cultural and educational rights, right to constitutional remedies.

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