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Q1: Which of the following are a nucleophile?
:CN-
:NH3
H+
Q2: Bonds with lower bond enthalpy are _____________ to break.
difficult
easy
Q3: For elimination to occur, a halogenoalkane has to be heated to high temperatures under ____________ conditions.
alcoholic
alkaline
acidic
Q4: Depletion of Ozone is caused by free radicals formed when chloro-fluoro carbons (CFC) absorb ____________ radiation.
gamma
UV
IR
Q5: Halogenoalkanes contain "polar" bonds because the halogens are more ____________________ than Carbon.
electropositive
electronegative
Q6: In an elimination reaction, the nucleophile acts as a ________________ .
acid
base
catalyst
Q7: Depletion of Ozone is an example of _______________ reaction.
substitution
reduction
elimination
Q8: Bond enthalpy is also known as: (select all applicable)
bond dissociation energy
latent heat of vaporisation
bond energy
Q9: Halogenoalkanes do not undergo nucleophilic substitution. True or False?
True
False
Q10: Which of the following can be produced by nucleophilic substitution of Halogenoalkanes?
Carboxylic Acids
Aldehydes
Alcohols
Amines
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