IIT JEE Practice Question and Answer

Q: Which value is equal to 5% of 1,500? 1985 0

  • 1
    35
    Correct
    Wrong
  • 2
    55
    Correct
    Wrong
  • 3
    75
    Correct
    Wrong
  • 4
    45
    Correct
    Wrong
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Answer : 3. "75"
Explanation :

Answer: C) 75 Explanation: In the question it is asked for 5% of 1500 5 x 1500/100 = 15 x 5 = 75.   Hence, 5% of 1,500 is equal to 75.

Q: Which sentence contains an infinitive? 1985 0

  • 1
    We walked to town with Grandfa.
    Correct
    Wrong
  • 2
    It is normal to make mistakes.
    Correct
    Wrong
  • 3
    Will you take the package to Sheila?
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 2. "It is normal to make mistakes."
Explanation :

Answer: B) It is normal to make mistakes. Explanation: An infinitive is a verbal that can function as noun, adjective, or adverb. Having or involving the basic form of a verb is called Infinnitive clause. Way to know whether there is an infinitive is to see whether there is the word "to" in the sentence.   Hence, option B) It is normal to make mistakes. is an infinitive sentence.

Q: Which is better investment : 11% stock at 143 (or) 9 3/4% stock at 117 ? 1984 0

  • 1
    Both are equally good
    Correct
    Wrong
  • 2
    9 3/4% stock at 117
    Correct
    Wrong
  • 3
    Cannot be compared, as the total amount of investment is not given
    Correct
    Wrong
  • 4
    11% stock at 143
    Correct
    Wrong
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Answer : 2. "9 3/4% stock at 117"
Explanation :

Answer: B) 9 3/4% stock at 117 Explanation: Let investment in each case be Rs. (143 x 117).   Income in 1st case = Rs.11143 x 143 x 117 = Rs. 1287.Income in 2nd case = Rs.394×117 x 143 x 117= Rs. 1394.25   Clearly, 9 3/4% stock at 117 is better.

Q: Who wrote the social contract? 1981 0

  • 1
    Jean-Jacques Rousseau
    Correct
    Wrong
  • 2
    Immanuel Kant
    Correct
    Wrong
  • 3
    John Locke
    Correct
    Wrong
  • 4
    Voltaire
    Correct
    Wrong
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Answer : 1. "Jean-Jacques Rousseau"
Explanation :

Answer: A) Jean-Jacques Rousseau Explanation: Jean-Jacques Rousseau (1712–1778), in his influential 1762 treatise The Social Contract, outlined a different version of social contract theory, as the foundations of political rights based on unlimited popular sovereignty.

Q: Who discovered the monomers of nucleic acids? 1981 0

  • 1
    James Watson, Francis Crick, and Rosalind Franklin
    Correct
    Wrong
  • 2
    Friedrich Miescher
    Correct
    Wrong
  • 3
    Phoebus Levene
    Correct
    Wrong
  • 4
    Gerardus Johannes Mulder and Jöns Jacob Berxelius
    Correct
    Wrong
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Answer : 3. "Phoebus Levene"
Explanation :

Answer: C) Phoebus Levene Explanation: Deoxyribonucleic acid (DNA) is a nucleic acid polymer composed of monomers called nucleotides. Nucleotides are composed of three components: (1) a pentose sugar; (2) a nitrogenous base; and (3) one to three phosphate groups. Phoebus Levene, a Russian biochemist was the first to discover the nucleotide and the first to correctly identify the way nucleic acid molecules, DNA.

Q: Find value of log27 +log 8 +log1000log 120 1980 1

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

Answer: B) 3/2 Explanation:  = log 33 + log 23+ log 103log10×3×22        =log33 12+log 23+log 10312log(10×3×22)                 =12log 33+3 log 2+12 log103log10+log3+log22                 =32log 3 + 2 log 2 + log 10log 3 + 2 log 2 + log 10 = 32

Q: Dronacharya Award Is Given To 1980 0

  • 1
    Sports Editors
    Correct
    Wrong
  • 2
    Umpires
    Correct
    Wrong
  • 3
    Sportsmen
    Correct
    Wrong
  • 4
    Coaches
    Correct
    Wrong
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Answer : 4. "Coaches"
Explanation :

Answer: D) Coaches Explanation: The Dronacharya Award, formally known as Dronacharya Award for Outstanding Coaches in Sports and Games, is sports training honour of the Republic of India. The award is named after Drona, often referred as "Dronacharya" or "Guru Drona", a character from the Sanskrit epic Mahabharata of ancient India.

Q: Which one of the following does not contain Silver ? 1979 0

  • 1
    Horn Silver
    Correct
    Wrong
  • 2
    Ruby Silver
    Correct
    Wrong
  • 3
    Lunar Caustic
    Correct
    Wrong
  • 4
    German Silver
    Correct
    Wrong
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Answer : 4. "German Silver"
Explanation :

Answer: D) German Silver Explanation:

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