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Chemistry Test ...

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  • Question 1
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    Atoms of two elements P and Q have \(5\) electrons in \(2^{\text {nd }}\) shell and \(3^{\text {rd }}\) shell respectively. What will be the atomic numbers of these elements?

  • Question 2
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    A segment of DNA has \(120\) adenine and \(120\) cytosine bases. The total number of nucleotides present in the segment is _________.

  • Question 3
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    Which of the following is easily controlled synthetic polymer reactions, not like free radical reactions?

  • Question 4
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    In the nitration of benzene, the active nitrating agent is:

  • Question 5
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    Intermediate product of hydrolysis of cyanide is:

  • Question 6
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    DNA is composed of repeating units of:

  • Question 7
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    Phenols are more acidic than alcohols. This Is due to one the following reasons. Identify that.acidic

  • Question 8
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    The enthalpy change of a reaction does not depend on:

  • Question 9
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    Electrolysis of dilute aqueous \(NaCl\) solution was carried out by passing \(10\) milli ampere current. The time required to liberate \(0.01\) mol of \(H_{2}\) gas at the cathode is: (\(1\) Faraday \(=96500 Cmol ^{-1}\))

  • Question 10
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    Which one of the following is a primary standard?

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