Identify an element - element combination reaction from the following.

2 P b (N O_{3})_{2} \to 2 P b O + 4 N O_{2} + O_{2}

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2 A l_{2} O_{3} \to 4 A l + 3 O_{2}

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S + O_{2} \to S O_{2}

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2 C O + O_{2} \to 2 C O_{2}

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Solution

The correct option is C $S + O_{2} \to S O_{2}$
First of all options C & D are the combination reactions. Option C is the combination of elements sulphur and oxygen while option D is the combination of compound carbon mono-oxide and element oxygen. So, Option C is an element - element combination reaction.

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Similar questions

2 P b {(N O_{3})}_{2 (s)}

H e a t ⟶

2 P b O_{(s)} + 4 N O_{2 (g)} ↑ + O_{2 (g)}

Which one is correct?

Pb(NO3)2----->PbO+2NO2+O2

2Pb(NO3)2----->2PbO+4NO2+O2

2 P b {(N O_{3})}_{2} (s) H e a t - -- \to 2 P b O (s) + 4 N O_{2} (g) + O_{2} (g)

2 P b (N O_{3})_{2} \to 2 P b O + 4 N O_{2} + O_{2}

C_{2} H_{4} + O_{2} \to

4 A l + 3 O_{2} \to

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