IIT JEE Practice Question and Answer

Q: What is the simplest form of matter? 1849 0

  • 1
    Element
    Correct
    Wrong
  • 2
    Molecule
    Correct
    Wrong
  • 3
    Atom
    Correct
    Wrong
  • 4
    Compound
    Correct
    Wrong
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Answer : 1. "Element"
Explanation :

Answer: A) Element Explanation: The simplest form of matter that has a unique set of properties and is cannot be broken down into simpler substances by chemical means is called an Element. ┬а An Atom is the simplest form of an element. The simplest form of some elements is a Molecule. When an element consists of two identical atoms it is called a diatomic molecule. A substance that contains two or more elements chemically combined in a fixed proportion is called a Compound.

Q: What do we call a change to the Constitution? 1849 0

  • 1
    A Bill
    Correct
    Wrong
  • 2
    An Act
    Correct
    Wrong
  • 3
    An Amendment
    Correct
    Wrong
  • 4
    An Interpret
    Correct
    Wrong
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Answer : 3. "An Amendment"
Explanation :

Answer: C) An Amendment Explanation: A change to the Constitution is called as An Amendment. An Amendment :: An Amendment is ratified after two-thirds of the House and Senate approve of the proposal and send it to the states for a vote. That Convention can propose as many amendments as it deems necessary. Then, three-fourths of the states must affirm the proposed Amendment.

Q: Multiplicative inverse of 0 1849 0

  • 1
    0
    Correct
    Wrong
  • 2
    1
    Correct
    Wrong
  • 3
    infinity
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 4. "None of the above"
Explanation :

Answer: D) None of the above Explanation: In the real numbers, zero does not have a reciprocal because no real number multiplied by 0 produces 1 (the product of any number with zero is zero). ┬а Hence, 0 doesn't have any multiplicative inverse.

Q: Finger like ends of the fallopian tubes are called 1849 0

  • 1
    Fimbriae
    Correct
    Wrong
  • 2
    Cysts
    Correct
    Wrong
  • 3
    Papillae
    Correct
    Wrong
  • 4
    Labia
    Correct
    Wrong
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Answer : 1. "Fimbriae"
Explanation :

Answer: A) Fimbriae Explanation: The fimbriae of the uterine tube, also known as fimbriae tubae, are small, fingerlike projections at the end of the fallopian tubes, through which eggs move from the ovaries to the uterus. The fimbriae are connected to the ovary.

Q: Which animal adaptation happened before the others? 1849 0

  • 1
    Reproduction on land
    Correct
    Wrong
  • 2
    Development of a colelom
    Correct
    Wrong
  • 3
    Tissue development
    Correct
    Wrong
  • 4
    Deuterostome development
    Correct
    Wrong
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Answer : 3. "Tissue development"
Explanation :

Answer: C) Tissue development Explanation:

Q: Three friends had dinner at a restaurant. When the bill was received, Akshitha paid 2/3 as much as Veena paid and Veena paid 1/2 as much as Lasya paid. What fraction of the bill did Veena pay ? 1848 0

  • 1
    11/3
    Correct
    Wrong
  • 2
    2/13
    Correct
    Wrong
  • 3
    3/11
    Correct
    Wrong
  • 4
    13/4
    Correct
    Wrong
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Answer : 3. "3/11"
Explanation :

Answer: C) 3/11 Explanation: Let Veena paid x,so Akshitha paid 2x/3 , and Lasya paid 2x,So total bill paid is given byx+(2x/3) +2x = 1, we geti.e. x = 3/11

Q: Which planet has the lowest density? 1848 0

  • 1
    Earth
    Correct
    Wrong
  • 2
    Jupiter
    Correct
    Wrong
  • 3
    Saturn
    Correct
    Wrong
  • 4
    Neptune
    Correct
    Wrong
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Answer : 3. "Saturn"
Explanation :

Answer: C) Saturn Explanation: Saturn, the solar system's second largest planet that takes the prize for least dense. It's less dense than water, which has led many people to postulate that it would float. However, even if it somehow found its way to a body of water large and deep enough to contain it, Saturn would break apart and its rocky core would sink.

Q: A six-digit number is formed by repeating a three-digit number; for example, 404404 or 415415 etc. Any number of this form is always exactly divisible by 1847 0

  • 1
    101
    Correct
    Wrong
  • 2
    901
    Correct
    Wrong
  • 3
    1001
    Correct
    Wrong
  • 4
    789
    Correct
    Wrong
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Answer : 3. "1001"
Explanation :

Answer: C) 1001 Explanation: Here by trial and error method, we can obseve that 404404 = 404 x 1001; 415415 = 415 x 1001, etc. So, any number of this form is divisible by 1001.

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