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Iron II Sulphate

2 g of alumin...

Question

$2 g$ of aluminium is treated separately with $H_{2} O$ at high temperature and excess of $N a O H$ . The ratio of the volumes of hydrogen evolved is $x : y$ . Find the value of $x^{y}$ .

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Solution

$2 A l + 3 H_{2} O Δ - \to A l_{2} O_{3} + 3 H_{2} 2 A l + 2 N a O H + 2 H_{2} O Δ - \to 2 N a A l O_{2} + 3 H_{2}$
The ratio of volumes of hydrogen evolved is $1 : 1$
Hence, $1^{1} = 1$

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