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A Level Organic Chemistry Halogenoalkanes

Subject: Chemistry

Level: Easy

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Q1: Which of the following are a nucleophile?

  • 1.

    :CN-

  • 2.

    :NH3

  • 3.

    H+

Q2: Bonds with lower bond enthalpy are _____________ to break.

  • 1.

    difficult

  • 2.

    easy

Q3: For elimination to occur, a halogenoalkane has to be heated to high temperatures under ____________ conditions.

  • 1.

    alcoholic

  • 2.

    alkaline

  • 3.

    acidic

Q4: Depletion of Ozone is caused by free radicals formed when chloro-fluoro carbons (CFC) absorb ____________ radiation.

  • 1.

    gamma

  • 2.

    UV

  • 3.

    IR

Q5: Halogenoalkanes contain "polar" bonds because the halogens are more ____________________ than Carbon.

  • 1.

    electropositive

  • 2.

    electronegative

Q6: In an elimination reaction, the nucleophile acts as a ________________ .

  • 1.

    acid

  • 2.

    base

  • 3.

    catalyst

Q7: Depletion of Ozone is an example of _______________ reaction.

  • 1.

    substitution

  • 2.

    reduction

  • 3.

    elimination

Q8: Bond enthalpy is also known as: (select all applicable)

  • 1.

    bond dissociation energy

  • 2.

    latent heat of vaporisation

  • 3.

    bond energy

Q9: Halogenoalkanes do not undergo nucleophilic substitution. True or False?

  • 1.

    True

  • 2.

    False

Q10: Which of the following can be produced by nucleophilic substitution of Halogenoalkanes?

  • 1.

    Carboxylic Acids

  • 2.

    Aldehydes

  • 3.

    Alcohols

  • 4.

    Amines

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