Day: August 29, 2022

Kenya Certificate of Secondary Education 2017 Chemistry paper 2 1. (a) Name the homologous series represented by each of the following general formulae. (i) CnH2n-2 (1 mark) (ii) CnH2n (1 mark) (b) Compound G is a triester. (i) Give the physical state Read More …

Kenya Certificate of Secondary Education 2017 Chemistry paper 1 1. Table 1 shows the atomic numbers and the first ionisation energies of three elements. The letters are not actual symbols of the elements. Use it to answer the questions that Read More …

Kenya Certificate of Secondary Education Practical 2018 Chemistry paper 3 1. You are provided with: • 0.30 g solid A, magnesium metal • Hydrochloric acid, solution B • 0.15 sodium carbonate, solution C • Methyl orange indicator You are required Read More …

Kenya Certificate of Secondary Education 2018 Chemistry paper 2 1. The diagram in figure I shows some natural and industrial processes. Study it and answer the questions that follows (a) Identify the processes labelled: (2 marks) A………………. B………………. C………………. D………………. Read More …

Kenya Certificate of Secondary Education 2018 Chemistry paper 1 1. (a) Define a soluble base. (1 mark) (b) Aqueous solutions of 2M ethanoic acid and 2M nitric(V) acid were tested for electrical conductivity. Which solution is a better conductor of Read More …

Kenya certificate of primary Education Practical 2019 Chemistry paper 3 1. You are provided with: •Solution A aqueous Iron(III) sulphate. • Solution B aqueous potassium iodide. • Solution C mixture of aqueous starch and sodium thiosulphate solution. You are required to determine the rate of Read More …

KCSE Past Papers 2019 Chemistry paper 2(233/2) Kenya Certificate of Secondary Education 2019 Chemistry paper 2 1. (a) Alkanes are said to be saturated hydrocarbons. (i) What is meant by saturatcd hydrocarbons. (1 mark) (ii) Draw the strucuire of the third member of Read More …

Kenya certificate of Secondary Education 2019 Chemistry paper 1 1. An atom of element A has mass number 39 and 19 protons. (a) Write the electron arrangements of the atom (1 mark) (b) State the period and group to which Read More …

Chemisry Paper 2 Answers Kenya certificate of Secondary Education 2020 Chemistry paper 2

Kenya certificate of Secondary Education 2020 Chemistry paper 2 1. Crude oil is a mixture of hydrocarbons which are separated by fractional distillation. One of the components obtained contains an alkane A, with eleven carbon atoms. (a) Write the molecular Read More …