May/June 2026 Paper 11

2026 · 40 questions · 40 parts · 40 marks

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11Oxidation Reduction Redox EquationsMedium1 mark

The equation for the reaction between nitric acid and arsenous acid, H

_{3}

AsO

_{3}

, is shown.

x H N O_{3} + y H_{3} A s O_{3} \to x N O + y H_{3} A s O_{4} + z H_{2} O

What are the numerical values of

x

and

y

	$x$	$y$
A	1	1
B	2	3
C	3	2
D	5	3