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Organic chemistry questions

Organic chemistry questions | form four Chemistry

Find Organic chemistry examination questions, form four Chemistry in acaproso.com

# Question
1

Which of the following hydrocarbons does NOT belong to the same homologous series as the others?

  1. CH_4
  2. C_3 H_8
  3. C_4 H_{10}
  4. C_6 H_{12}
  5. C_2 H_{12}

Multiple choices
2

Name the following compounds according to the IUPAC system.

  1. C_5 H_{12}
  2. Hydrocarbons chemistry form four
  3. Hydrocarbons chemistry form four

Short answers
3

Give the reasons for the following

  1. Alkanes have lowest melting and boiling points when compared to other classes of organic compounds.
  2. Alkenes are more reactive than Alkanes.

Short answers
4

Why is it dangerous to burn hydrocarbons in too little air ?


Short answers
5

Why methane is used as fuel ?Write a balanced chemical equation of its combustion.


Short answers
6

From which factors does the isomerism of alcohols arise ?


Short answers
7

An example of alkene that decolourises potassium permanganate solution is

  1. methane
  2. ethyne
  3. ethene
  4. ethane
  5. butyne

Multiple choices
8

The following are the general structural formulae of certain organic compounds: R-OH, R-COOH, and RCOOR.

  1. Name the Homologous series represented by R-OH, R-COOH and RCOOR.
  2. Functional groups represented by R-OH and R-COOH

Short answers
9

Alcohols react with carboxylic acids to form a group of organic compounds called
      A. alkynes

  1. aldehydes
  2. ethers
  3. esters
  4. alkanols.

Multiple choices
10

Write down the chemical equations of the reactions between the following:
(i) Ethanol and sodium metal.
(ii) Propanol warmed with excess acidified potassium permanganate.
(iii) Propanol and acetic acid warmed together in the presence of concentrated sulphuric acid.


Short answers