MCQ
Alkynes on reduction with sodium in liquid ammonia forms:
- ACis-alkene.
- BAlkane.
- CTrans-alkene.
- DBoth (a) and (c).
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Assertion $A :$- Carbon forms two important oxides $- CO$ and $CO _2 . CO$ is neutral whereas $CO _2$ is acidic in nature.
Reason $R :$- $CO _2$ can combine with water in a limited way to form carbonic acid, while $CO$ is sparingly soluble in water.
In the light of the above statements, choose the most appropriate answer from the options given below :-

