Browse Questions

# $xNO_2+yH_2O+O_2\rightarrow 4z$.The $y$ is

$(a)\;2\qquad(b)\;1\qquad(c)\;3\qquad(d)\;4$

$4NO_2+2H_2O+O_2\rightarrow 4HNO_3$
Hence y is 2.
Hence (a) is the correct answer.