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Question

Magnesium ribbon is burnt in an atmosphere of nitrogen gas to form solid magnesium nitride. This is a :


A
decomposition reaction
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B
combination reaction
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C
displacement reaction
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D
double displacement reaction
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Solution

The correct option is B combination reaction
Reaction of magnesium with nitrogen is a combination reaction as these two reactants ( $$Mg$$ and $$N_{2}$$) combine together to form a single product as magnesium nitride ($$Mg_{3}N_{2}$$). The equation can be written as:

$$3Mg(s)  +  N_{2}(g)  \rightarrow   Mg_{3}N_{2}(s)$$

Chemistry

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