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Question

Conversion of ammonia to nitric acid by the above process giving all conditions is
$$ 4{ NH }_{ 3 }+{ xO }_{ 2 }\xrightarrow { Pt } yNO+6{ H }_{ 2 }O\\ 2NO+{ O }_{ 2 }\rightarrow 2{ NO }_{ 2 }\\ z{ NO }_{ 2 }+{ H }_{ 2 }O\rightarrow 2{ HNO }_{ 3 }+NO$$
Fiind x, y and z:


A
x=5,y=4 and z=3
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B
x=5,y=2 and z=4
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C
x=3,y=4 and z=5
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D
x=5,y=2 and z=3
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Solution

The correct option is B $$x=5, y= 4$$ and $$z= 3$$
$$ 4{ NH }_{ 3 }+{ 5O }_{ 2 }\xrightarrow { Pt } 4NO+6{ H }_{ 2 }O\\ 2NO+{ O }_{ 2 }\rightarrow 2{ NO }_{ 2 }\\ 3{ NO }_{ 2 }+{ H }_{ 2 }O\rightarrow 2{ HNO }_{ 3 }+NO$$

Chemistry

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