1. Tardigrade
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  3. Chemistry
  4. An oxide of carbon (X) reacts with ammonia to produce urea an important fertilizer. Which of the following combinations will not yield (X).

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Q. An oxide of carbon (X) reacts with ammonia to produce urea an important fertilizer. Which of the following combinations will not yield (X).

The p-Block Elements

Solution:

$(X)$ is $CO_{2}$ because $CO_{2} + NH_{3}$ under pressure gives urea, reaction (b) does not produce $CO_{2}$
$ CaO +C \xrightarrow{\Delta} CaC_{2} +CO$