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1996 WAEC Chemistry Theory (a) The elements listed below to the same group in the Periodic Table \(_9F\)  \(_{17}CI\)...

Chemistry
WAEC 1996

(a) The elements listed below to the same group in the Periodic Table \(_9F\)  \(_{17}CI\) \(_{35}Br\) \(_{53}I\).

(i) Write the electronic structure of the first member

(ii) What is the family name of the elements.

(iii) Which of the elements has the strongest oxidizing ability?

 

(b) Use the information provided in the following table to answer Questions (i) to (ii) below

(b)(i) Which of the chlorides would exist as discrete molecules?

(ii) What type of bonding holds atoms of A and chlorine together in ACI?

(iii) Which of the chlorides would be a good conductor of electricity?

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Explanation

(a)(i) 1s\(^2\)2s\(^2\)2p\(^{5}\) or 2,7

(ii) Halogen

(iii) Fluorine of F

 

(b)(i) BCl\(_4\)

(ii) Ionic or Electronic bonding

(iii) ACI.


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WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC offline past questions - with all answers and explanations in one app - Download for free
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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC offline past questions - with all answers and explanations in one app - Download for free