1.

An inorganic compound (X) made up of two most occurring elements in the earths crust and used in building construction . When (X ) reacts with carbon . It forms a posionous gas (Y) which is most stable diatomic molecule . Identify compounds (X ) and (Y) .

Answer»

`SiO_2 ,CO_2`
`SI,CO_2`
`SiO_2,CO`
`Si,CO`

ANSWER :C


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