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Chemistry Test - 21

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Chemistry Test - 21
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Weekly Quiz Competition
  • Question 1
    3 / -1

    5A→ 2B

    If there were 1.5 moles of 'A' 2 L solution in the beginning of the reaction, what is the concentration of 'B' when 'A' is 20% consumed?

    Solution

  • Question 2
    3 / -1

    Fluorobenzene (C6H5F) can be synthesised in the laboratory

    Solution

    Flurobenzene can be synthesised from aniline by diazotisation, followed by heating the diazonium salt with HBF4.

  • Question 3
    3 / -1

    Which of the following is not a part of the biotic environment?

    Solution

    Air is not a part of the biotic environment.

  • Question 4
    3 / -1

    Directions: The following question has four choices out of which ONLY ONE is correct.

    The molecular formula of chloropicrin is

    Solution

    Chloropicrin, also known as PS and nitrochloroform, is a chemical compound with the structural formula Cl3CNO2.

  • Question 5
    3 / -1

    Which of the following is a repeating unit of synthetic rubber?

    Solution

    Synthetic rubber can be made from the polymerization of a variety of monomers including isoprene (2-methyl-1,3-butadiene), 1,3-butadiene, chloroprene (2-chloro-1,3-butadiene), and isobutylene (methylpropene) with a small percentage of isoprene for cross-linking.

  • Question 6
    3 / -1

    Photochemical smog can be suppressed by

    Solution

    Photochemical smog can be suppressed by certain compounds, which act as free radical traps and also by installation of efficient catalytic converters in automobiles.

  • Question 7
    3 / -1

    Alkyl halides, on treatment with a suspension of Ag2O (dry), give

    Solution

  • Question 8
    3 / -1

    Which of the following does not give iodoform test?

    Solution

  • Question 9
    3 / -1

    Which of the following elements is present in teflon?

    Solution

    Fluorine is present in teflon. Teflon has the following structure:

  • Question 10
    3 / -1

    Which of the following statements is correct about potassium permanganate?

    Solution

    Potassium permanganate is also widely used as a disinfectant and germicide.

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