An oxide of carbon `(X)` reacts with ammonia to produce urea and important fertilizer. Which of the following combinations will not yields `(X)`.

Options

A. `CO_(3)^(2-)+HCloverset(Delta)to`
B. `CaO+Coverset(Delta)to`
C. `C+(excess )O_(2)overset(Delta)to`
D. `HCO_(3)^(-)+HCloverset(Delta)to`

Answer

B

Explanation

`(X)` is `CO_(2)` because `CO_(2)+NH_(3)` under pressure gives urea, reaction (b) does not produce `CO_(2)`
`CaO+Coverset(Delta)toCaC_(2)+CO`