Balance the following reaction and find out the ratio of molar coefficients of the metal and the salt of the metal.
$Z n + H N O_{3} \to Z n (N O_{3})_{2} (d i l) + N_{2} O + H_{2} O$

1 : 2

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1 : 1

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2 : 1

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1 : 3

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Solution

The correct option is A 1 : 1
The balanced equation can be written as:
$4 Z n + 10 H N O_{3} \to 4 Z n (N O_{3})_{2} + N_{2} O + 5 H_{2} O$
Thus the ratio of Zn and $Z n (N O_{3})_{2}$ is 4:4 = 1:1.

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Z n + H N O_{3} \to 4 Z n (N O_{3})_{2} + N_{2} O + H_{2} O

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