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Chemistry
Which of the following is combination reaction?
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Q. Which of the following is combination reaction?
Language of Chemistry and Transformation of Substances
A
$2 CO + O _2 \rightarrow 2 CO _2$
B
$CaO + CO _2 \rightarrow CaCO _3$
C
$2 NO + O _2 \rightarrow 2 NO _2$
D
All of these
Solution:
A chemical reaction in which two or more substance combine to form a single new substance is called combination reaction.
$A + B \rightarrow AB$