Jamb Chemistry Past Questions For Year 2018

Question 16

The Consecutive members of an alkane homologous series differ by

jamb 2018

  • A. CH
  • B. CH\(_2\)
  • C. CH\(_3\)
  • D. C\(_n\)H\(_n\)
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Question 17

Which of the following pairs of substances will react further with oxygen to form a higher oxide?

jamb 2018

  • A. CO\(_2\) and H\(_2\)O
  • B. NO and H\(_2\)O
  • C. CO and CO\(_2\)
  • D. SO\(_2\) and NO
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Question 18

The boiling of fat and aqueous caustic soda is referred to as

jamb 2018

  • A. hydrolysis
  • B. esterification
  • C. acidification
  • D. saponification
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Question 19

In the shown experiment (Fig. 1) the litmus paper will initially

jamb 2018

  • A. be bleached
  • B. turn green
  • C. turn red
  • D. turn blue
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Question 20

If 1 litre of 2.2M sulphuric acid is poured into a bucket containing 10 litres of water and the resulting solution mixed thoroughly, the resulting sulphuric acid concentration will be

jamb 2018

  • A. 2.2M
  • B. 1.1M
  • C. 0.2M
  • D. 0.11M
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