IIT JEE Practice Question and Answer

Q: Name the player who became the first Indian javelin thrower to claim a gold medal at the Commonwealth Games 2018. 1019 0

  • 1
    Neeraj Chopra
    Correct
    Wrong
  • 2
    Ankur Mittal
    Correct
    Wrong
  • 3
    Seema Antil
    Correct
    Wrong
  • 4
    Annu Rani
    Correct
    Wrong
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Answer : 1. "Neeraj Chopra"
Explanation :

Answer: A) Neeraj Chopra Explanation: Neeraj Chopra became the first Indian javelin thrower to claim a gold medal at the Commonwealth Games, with a season’s best effort of 86.47m in the final. The 20-year-old junior world champion had made the final after achieving the qualifying mark in his very first throw.

Q: 5x - 6 = 3x - 8 Solve the above equation. 1018 0

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

Answer: B) -1 Explanation: Given 5x - 6 = 3x - 8 5x - 3x = -8 + 6 2x = -2 => x = -1.

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Answer : 1. "TRUE"
Explanation :

Answer: A) TRUE Explanation: Since the Gaslight Commons costs more than the Riverdale Manor and the Livingston Gate costs more than the Gaslight Commons, it is true that the Livingston Gate costs the most.

Q: The angle between the minute hand and the hour hand of a clock when the time is 4.15 is 1017 0

  • 1
    0
    Correct
    Wrong
  • 2
    37.5
    Correct
    Wrong
  • 3
    27
    Correct
    Wrong
  • 4
    15
    Correct
    Wrong
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Answer : 2. "37.5"
Explanation :

Answer: B) 37.5 Explanation: Angle between hands of a clock   When the minute hand is behind the hour hand, the angle between the two hands at M minutes past H 'o clock   => 30H-M5+M2 degrees   Here H = 4, M = 15 and the minute hand is behind the hour hand.   Hence the angle    = 30[4-(15/5)]+15/2 = 30(1)+7.5 = 37.5 degrees

Q: 125% as a Fraction? 1017 0

  • 1
    1/4
    Correct
    Wrong
  • 2
    3/4
    Correct
    Wrong
  • 3
    5/4
    Correct
    Wrong
  • 4
    7/4
    Correct
    Wrong
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Answer : 3. "5/4"
Explanation :

Answer: C) 5/4 Explanation: Literally any percentage means divide by 100. So 125% = 125100. That can be reduced to 5/4. To convert to a decimal, you can do long division, dividing 5 into 4.

Q: Consent of the People means 1017 0

  • 1
    All the People
    Correct
    Wrong
  • 2
    Majority of People
    Correct
    Wrong
  • 3
    Leader of the People
    Correct
    Wrong
  • 4
    A few People
    Correct
    Wrong
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Answer : 2. "Majority of People"
Explanation :

Answer: B) Majority of People Explanation: Consent of the People means the Majority of People, as expressed by votes in elections. Consent of the governed refers to the idea that a government's legitimacy and moral right to use state power is only justified and lawful when consented to by the people or society over which that political power is exercised.

Q: Which compound contains ionic bonds? 1016 0

  • 1
    CaO
    Correct
    Wrong
  • 2
    CO2
    Correct
    Wrong
  • 3
    NO2
    Correct
    Wrong
  • 4
    NO
    Correct
    Wrong
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Answer : 1. "CaO"
Explanation :

Answer: A) CaO Explanation: An ionic bond is a chemical bond between two atoms in which one atom seems to donate its electron to another atom.   Here in the given compounds, the compound that contains ionic bond is CaO, Calcium oxide.

Q: Which of the following is an example of chemical weathering? 1015 0

  • 1
    Oxidation
    Correct
    Wrong
  • 2
    Acid rains
    Correct
    Wrong
  • 3
    Carbonation
    Correct
    Wrong
  • 4
    All the above
    Correct
    Wrong
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Answer : 4. "All the above"
Explanation :

Answer: D) All the above Explanation: Chemical weathering is what happens when rocks are broken down and chemically altered. Chemical weathering is the breakdown of rocks by chemical reactions. Chemical weathering involves changes in the chemical composition of the existing rock to form new rock. Some examples of chemical weathering are hydrolysis, oxidation, carbonation, dissolution, etc.

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