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1998 WAEC Chemistry Theory (a) Write an equation for the reaction of chlorine with (i) potassium iodide solution; (ii)...

Chemistry
WAEC 1998

(a) Write an equation for the reaction of chlorine with

(i) potassium iodide solution;

(ii) zinc on heating

(b) Identify the product Q in the following reaction: Cl\(_2\) + 2NaOH \(\to\) NaCl + H\(_2\)O + Q.

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Explanation

(a) Reactions of chlorine with KI and Zn.

(i) Cl\(_2\) + 2Kl --> 2KCI + l\(_2\)

(ii) Cl\(_2\) + Zn \(\to\)  ZnCl\(_2\)

(b) NaCIO or sodium oxochlorate (I) is the product represented by Q in the given equation.


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