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QUESTION 1: MULTIPLE-CHOICE QUESTIONS
Various options are provided as possible answers to the following questions. Each
question has only ONE correct answer. Choose the answer and write only the letter
(A–D) next to the question numbers (1.1 to 1.10) in the ANSWER BOOK, e.g. 1.11 E.
This how your instructions will be in the exam. for this practice, just select the right anzswer from the list.
1.1 For which ONE of the following molecular formulae are CHAIN isomers
possible?
1.2 Which ONE of the following compounds has the LOWEST vapour pressure
under the same conditions?
1.3 The type of organic compound formed when a haloalkane is heated in the
presence of a concentrated strong base is an …
1.4 EXCESS HCℓ(aq) of concentration 0,1 mol∙dm-3
reacts with 2 g of Mg under
different conditions.
Which ONE of the following combinations of conditions will produce the
largest volume of H2(g) in the FIRST MINUTE of the reaction?
1.5 The potential energy diagram for a chemical reaction is shown below.
Which ONE of the following combinations is CORRECT for the FORWARD
reaction?
1.6
1.7 According to the Lowry-Brønsted theory, a conjugate base is formed when
a/an …
1.8 Consider the statements below regarding an alkaline substance.
An alkaline substance:
(i) Reacts with an acid to form a neutral solution
(ii) Turns red litmus blue
(iii) Forms a salt when it reacts with an acid
Which of the statements above are ALWAYS TRUE?
1.9
1.10