GATE Practice Question and Answer

Q: Which of the following is a micro nutrient? 3809 0

  • 1
    Mg
    Correct
    Wrong
  • 2
    Cl
    Correct
    Wrong
  • 3
    P
    Correct
    Wrong
  • 4
    Ca
    Correct
    Wrong
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Answer : 2. "Cl"
Explanation :

Answer: B) Cl Explanation: The micronutrients (or trace minerals): boron (B), chlorine (Cl), manganese (Mn), iron (Fe), zinc (Zn), copper (Cu), molybdenum (Mo), nickel (Ni). and cobalt (Co).

Q: What does the Aufbau Principle state 1751 0

  • 1
    Electrons will be added to an atom starting from the lowest possible level or sublevel.
    Correct
    Wrong
  • 2
    Electrons will be added to an atom only if the orbitals are different colors.
    Correct
    Wrong
  • 3
    Electrons will be added to an atom in a random order.
    Correct
    Wrong
  • 4
    Electrons will be added to an atom in a symmetrical manner.
    Correct
    Wrong
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Answer : 1. "Electrons will be added to an atom starting from the lowest possible level or sublevel."
Explanation :

Answer: A) Electrons will be added to an atom starting from the lowest possible level or sublevel. Explanation: The Aufbau Principle states that in the ground state of an atom, an electron enters the orbital with lowest energy first and subsequent electrons are fed in the order of increasing energies.

Q: What belongs to you but is used more by others? 1366 0

  • 1
    Clothes
    Correct
    Wrong
  • 2
    Cosmetics
    Correct
    Wrong
  • 3
    Shoes
    Correct
    Wrong
  • 4
    Name
    Correct
    Wrong
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Answer : 4. "Name"
Explanation :

Answer: D) Name Explanation: Yep! It's your NAME that belongs to you but is used more by others than you.

Q: In a vacuum, all electromagnetic waves have the same 1539 0

  • 1
    Velocity
    Correct
    Wrong
  • 2
    Wavelenth
    Correct
    Wrong
  • 3
    Frequency
    Correct
    Wrong
  • 4
    All the above
    Correct
    Wrong
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Answer : 1. "Velocity"
Explanation :

Answer: A) Velocity Explanation: When traveling in a vacuum, electronic waves from the electromagnetic spectrum all travel at the same speed. Velocity is speed with direction, so they would all travel at the same velocity, realtively speaking. But frequency and wavelength are quite different.

Q: Why did charles babbage invent the computer? 1709 0

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Answer :
Explanation :

Charles Babbage, the father of computer, invented the first general-purpose computer in an effort to prevent the mathematical errors that were prevalent in the human-calculated mathematics of his time.

Q: The more you take away the larger it becomes. What is that? 1352 0

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Answer :
Explanation :

A Hole. When you are digging a hole the more you take out the soil, the igger the hole becomes.

Q: What is the conjugate base of H2O? 1359 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? 1572 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.

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