2022 Form 3 Chemistry Paper 2 End of Term 2 Examination V1

END TERM EXAMINATIONS

END TERM 2 -2022

CHEMISTRY PAPER 2 (233/2)

 FORM THREE (3)

                                           TIME: 2 HOURS      

Name …………………………………………….……… Adm. Number…………………………..  

Candidate’s Signature ………………….……………..     Date……………………………………

Instructions to candidates

• (a) Write your name, stream, and admission number in the spaces provided above.
• (b) Answer ALL the questions in the spaces provided, and working MUST be clearly shown
• (c) This paper consists of 9 printed pages; Candidates should check the question paper to ascertain that all the pages are printed as indicated, and that no question is missing.

FOR EXAMINERS’ USE ONLY

1. The grid below represents part of the periodic table. The letters do not represent actual symbols of elements. Study the grid and use it to answer the questions that follow.

1. Name the chemical family to which element C belongs     (1 mark)

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1. Name the type of bond formed when element D reacts with oxygen     (1 mark)

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1. Write the possible formula of the compound formed between elements C and A     (1 mark)

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1. Comment on the melting point and boiling point of the compound formed in (c) above                                                                                                                            (2 marks)

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1. Element Q is in period 3 and its stable ion is represented with the symbol Q^3-
2. i) Indicate, in the grid above, the most possible position of element Q     (1 mark)
3. ii) Write the electron arrangement of an atom of Q     (1 mark)

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1. How do the atomic radii of elements C and D compare? Explain    (2 marks)

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1. How do the melting points of elements B and G compare? Explain    (2 marks)

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1. Which element in the table is possibly the least reactive? Explain    (2 marks)

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3. The Solvay Process is a method used in the manufacture of sodium carbonate.