IIT JEE Practice Question and Answer

Q: What is true about certificates of deposit? 1112 0

  • 1
    the money has to remain in the account for a specified period of time
    Correct
    Wrong
  • 2
    they are the most liquid account available
    Correct
    Wrong
  • 3
    they offer lower interest rates than savings accounts
    Correct
    Wrong
  • 4
    All the above
    Correct
    Wrong
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Answer : 1. "the money has to remain in the account for a specified period of time"
Explanation :

Answer: A) the money has to remain in the account for a specified period of time Explanation: A certificate of deposit (CD) is a savings certificate with a fixed maturity date, specified fixed interest rate and can be issued in any denomination aside from minimum investment requirements. CD's are generally issued by commercial banks

Q: One boat is overtaking another, which boat should stand on? 1585 0

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Answer :
Explanation :

The boat which is overtaken must give way to the boat which is overtaking and should stand on until it is completely overtaken.

Q: What is the conjugate base of H2O? 1048 0

  • 1
    NH3+
    Correct
    Wrong
  • 2
    OH-
    Correct
    Wrong
  • 3
    H2O
    Correct
    Wrong
  • 4
    All the above
    Correct
    Wrong
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Answer : 2. "OH-"
Explanation :

Answer: B) OH- Explanation: A conjugate acid, is a species formed by the reception of a proton (H+) by a base—in other words, it is a base with a hydrogen ion added to it. On the other hand, a conjugate base is what is left over after an acid has donated a proton during a chemical reaction. Hence, a conjugate base is a species formed by the removal of a proton from an acid. Because some acids are capable of releasing multiple protons, the conjugate base of an acid may itself be acidic. Represented as the following chemical reaction: Acid + Base ⇌ Conjugate Base + Conjugate Acid   The water molecule is the conjugate acid of the hydroxide ion after the latter received the hydrogen proton donated by ammonium. On the other hand, ammonia is the conjugate base for the acid ammonium after ammonium has donated a hydrogen ion towards the production of the water molecule. We can also refer to OH- as a conjugate base of H2O, since the water molecule donates a proton towards the production of NH+4 in the reverse reaction, which is the predominating process in nature due to the strength of the base NH3 over the hydroxide ion.

Q: What happens during the process of translation? 1278 0

  • 1
    Transfer RNA is made from messenger RNA
    Correct
    Wrong
  • 2
    Copies of DNA molecules are made
    Correct
    Wrong
  • 3
    The cell uses information from messenger RNA to produce proteins
    Correct
    Wrong
  • 4
    Messenger RNA is made from DNA
    Correct
    Wrong
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Answer : 3. "The cell uses information from messenger RNA to produce proteins"
Explanation :

Answer: C) The cell uses information from messenger RNA to produce proteins Explanation: Translation is the process by which a protein is synthesized from the information contained in a molecule of messenger RNA (mRNA). During translation, an mRNA sequence is read using the genetic code, which is a set of rules that defines how an mRNA sequence is to be translated into the 20-letter code of amino acids, which are the building blocks of proteins.   In short, during the process of translation source language text is conveyed to destination language.

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.

Q: Which sentence describes a legislative referendum? 9897 0

  • 1
    Voters approve a measure that is nonbinding and can be ignored.
    Correct
    Wrong
  • 2
    Voters approve or reject a proposal without the legislature.
    Correct
    Wrong
  • 3
    Voters sign a petition to gather support for an issue.
    Correct
    Wrong
  • 4
    A legislature passes a bill that must be approved by voters.
    Correct
    Wrong
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Answer : 4. "A legislature passes a bill that must be approved by voters."
Explanation :

Answer: D) A legislature passes a bill that must be approved by voters. Explanation:

Q: What has four wheels and flies? 1702 0

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Answer :
Explanation :

Garbage truck. It’s true, a garbage truck has 4 wheels and lots of flies because flies like garbage. Here flies means insects like houseflies, mosquitoes, ... It doesn't mean that it flies in the air.

Q: The more you take, the more you leave behind. What is that? 1348 0

  • 1
    Pictures
    Correct
    Wrong
  • 2
    Hole
    Correct
    Wrong
  • 3
    Clothes
    Correct
    Wrong
  • 4
    Footsteps
    Correct
    Wrong
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Answer : 4. "Footsteps"
Explanation :

Answer: D) Footsteps Explanation: Yes, footsteps are what we take more, the more we leave behind.

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