IIT JEE Practice Question and Answer

Q: Total Output is a synonym for 1728 0

  • 1
    aggregate demand
    Correct
    Wrong
  • 2
    gross domestic product
    Correct
    Wrong
  • 3
    aggregate supply
    Correct
    Wrong
  • 4
    equilibrium
    Correct
    Wrong
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Answer : 3. "aggregate supply"
Explanation :

Answer: C) aggregate supply Explanation: Total Output is a synonym for Aggregate supply or Initial production.

Q: Which feature do Prokaryotic and Eukaryotic cells share 1657 0

  • 1
    Nucleus
    Correct
    Wrong
  • 2
    DNA
    Correct
    Wrong
  • 3
    Nuclear membrane
    Correct
    Wrong
  • 4
    Membrane bound Organelles
    Correct
    Wrong
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Answer : 2. "DNA"
Explanation :

Answer: B) DNA Explanation: Prokaryotic and Eukaryotic cells do share a feature of DNA. Both prokaryotic and eukaryotic cells have structures in common. All cells have a plasma membrane, ribosomes, cytoplasm, and DNA. Prokaryotic cells are primitive cells which have no true nucleus and membrane bound organelles, while Eukaryotic cells are cells that have true nucleus, membrane bound organelles and well defined structures and layouts.

Q: Acid Precipitation is caused by a mix of 1554 0

  • 1
    Hydrogen, Oxygen, and Saline
    Correct
    Wrong
  • 2
    Water, Soil, and Air
    Correct
    Wrong
  • 3
    Respiration, Carbonic Acids, and Seawater
    Correct
    Wrong
  • 4
    Sulfur Dioxide, Carbon Dioxide, Nitrogen Oxides
    Correct
    Wrong
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Answer : 4. "Sulfur Dioxide, Carbon Dioxide, Nitrogen Oxides"
Explanation :

Answer: D) Sulfur Dioxide, Carbon Dioxide, Nitrogen Oxides Explanation: Acid Precipitation or Acid rain is caused by a mix of Sulfur Dioxide, Carbon Dioxide, Nitrogen Oxides.   A Chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. These substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as Acid Rains.

Q: You can See, Smell and Taste microorganisms. 2147 0

  • 1
    TRUE
    Correct
    Wrong
  • 2
    FALSE
    Correct
    Wrong
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Answer : 2. "FALSE"
Explanation :

Answer: B) FALSE Explanation: You cannot see a microorganisms without using a Microscope. You also cannot taste or smell microorganisms such as bacteria in contaminated food.

Q: What happens when two atoms form a chemical bond? 1395 0

  • 1
    Two atoms fuse together to form a chemical bond
    Correct
    Wrong
  • 2
    The atoms share or transfer electrons
    Correct
    Wrong
  • 3
    A chemical bond forms when two atoms transfer or share protons to achieve a stable nucleus
    Correct
    Wrong
  • 4
    Like charges in the atoms cause them to stick together
    Correct
    Wrong
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Answer : 2. "The atoms share or transfer electrons"
Explanation :

Answer: B) The atoms share or transfer electrons Explanation: All chemistry is based on sharing electrons. A chemical bond forms when two atoms transfer or share outer electrons to complete their outer shells.

Q: Is Cube a polygon? 1421 0

  • 1
    TRUE
    Correct
    Wrong
  • 2
    FALSE
    Correct
    Wrong
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Answer : 2. "FALSE"
Explanation :

Answer: B) FALSE Explanation: False. Cube is not a Polygon. Because polygon is a two dimensional figure and can be drawn on a flat surface whereas Cube is three dimensional figure and cannot be drawn on a flat surface.

Q: How many cups in a quart? 1523 0

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

Answer: C) 4 Explanation: 1 quart = 4 cups. => We know that 1 quart = 2 pints But 1 pint = 2 cups => 2 pints = 2 x 2 cups = 4 cups = 1 quart.

Q: 7, 11, 19, 35, ? Find the next number in the given number series? 2483 0

  • 1
    131
    Correct
    Wrong
  • 2
    94
    Correct
    Wrong
  • 3
    83
    Correct
    Wrong
  • 4
    67
    Correct
    Wrong
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Answer : 4. "67"
Explanation :

Answer: D) 67 Explanation: Here the given series 7, 11, 19, 35, ? follows a pattern that (x 2 - 3) i.e, 7 7 x 2 - 3 = 11 11 x 2 - 3 = 19 19 x 2 - 3 = 35 35 x 2 - 3 = 67 67 x 2 - 3 = 131   Hence the next number in the given number series is 67.

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