IIT JEE Practice Question and Answer

Q: Which of the following is not a compound? 1757 0

  • 1
    Brass
    Correct
    Wrong
  • 2
    Quick lime
    Correct
    Wrong
  • 3
    Marble
    Correct
    Wrong
  • 4
    Soda ash
    Correct
    Wrong
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Answer : 1. "Brass"
Explanation :

Answer: A) Brass Explanation: Among the given options Brass is not a compound. Since it is an alloy, it is a mixture.    The smallest part of a compound is called a molecule. It has a unique composition that is always the same. Compound is a substance that consists of two or more elements.

Q: Breeding and management of bees is called 2264 0

  • 1
    Pisciculture
    Correct
    Wrong
  • 2
    Sericulture
    Correct
    Wrong
  • 3
    Silviculture
    Correct
    Wrong
  • 4
    Apiculture
    Correct
    Wrong
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Answer : 4. "Apiculture"
Explanation :

Answer: D) Apiculture Explanation: Breeding and management of bees is called Apiculture.   A beekeeper or apiarist keeps bees in order to collect their honey and other products that the hive produces (including beeswax, propolis, flower pollen, bee pollen, and royal jelly), to pollinate crops, or to produce bees for sale to other beekeepers. A location where bees are kept is called an 'apiary' or 'bee yard.'

Q: What is always coming but never arrives? 1990 0

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Answer :
Explanation :

It is Tomorrow. It always be tomorrow which represents coming but never arrives.

Q: Which of the following vitamin helps in clotting of blood? 1500 0

  • 1
    Vitamin K
    Correct
    Wrong
  • 2
    Vitamin D
    Correct
    Wrong
  • 3
    Vitamin B1
    Correct
    Wrong
  • 4
    Vitamin B2
    Correct
    Wrong
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Answer : 1. "Vitamin K"
Explanation :

Answer: A) Vitamin K Explanation: Vitamin K helps in clotting of blood. It is used by the body to help blood clot.   Warfarin (Coumadin) is used to slow blood clotting. By helping the blood clot, vitamin K might decrease the effectiveness of warfarin (Coumadin).

Q: Which of the following describes the Urban League? 2654 0

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    focused on helping poor African American workers
    Correct
    Wrong
  • 2
    helped middle-class African Americans struggle for political and social justice
    Correct
    Wrong
  • 3
    formed in response to race riots in 1908
    Correct
    Wrong
  • 4
    led by Jane Addams and Ida B. Wells
    Correct
    Wrong
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Answer : 1. "focused on helping poor African American workers"
Explanation :

Answer: A) focused on helping poor African American workers Explanation:

Q: What was the symbol of death of gautama buddha? 1728 0

  • 1
    Stupa
    Correct
    Wrong
  • 2
    Bodhi tree
    Correct
    Wrong
  • 3
    Lion
    Correct
    Wrong
  • 4
    Chaitya
    Correct
    Wrong
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Answer : 1. "Stupa"
Explanation :

Answer: A) Stupa Explanation: Stupa represents the symbol of death of Gautama Buddha. On the other hand, Bodhi Tree is the symbol of nirvana of Gautama Buddha.

Q: Pollination by wind is called 2017 0

  • 1
    Hydrophily
    Correct
    Wrong
  • 2
    Entomophily
    Correct
    Wrong
  • 3
    Anemophily
    Correct
    Wrong
  • 4
    Zoophily
    Correct
    Wrong
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Answer : 3. "Anemophily"
Explanation :

Answer: C) Anemophily Explanation: Pollination by wind is called Anemophily or Wind pollination. The process of the transfer of pollen from one individual plant to another, whereby the pollen is carried by air currents is called Anemophily.   Almost all gymnosperms (Non-flowering plants) are anemophilous, as are many plants in the order Poales, including grasses, sedges and rushes.

Q: An electrically charged atom or group of atoms is called 1414 0

  • 1
    An ion
    Correct
    Wrong
  • 2
    A meson
    Correct
    Wrong
  • 3
    A electron
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 1. "An ion"
Explanation :

Answer: A) An ion Explanation: An electrically charged atom or group of atoms formed by the loss or gain of one or more electrons is called an Ion. Cation: An ion is a cation (positive ion) if it is created by electron loss and is attracted to the cathode in electrolysis. Anion: An ion is an anion (negative ion) if it is created by an electron gain and is attracted to the anode.   The valence of an ion is equal to the number of electrons lost or gained and is indicated by a plus sign for cations and a minus sign for anions. Ex: Na +, Cl−, Ca ++,...

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