Question

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

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

Solution

## The correct option is B combination reactionReaction 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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