MCQ
Given below are two statements, one is labelled as Assertion $A$ and the other is labelled as Reason $R$

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 :-

  • A
    Both $A$ and $R$ are correct but $R$ is NOT the correct explanation of $A$.
  • Both $A$ and $R$ are correct and $R$ is the correct explanation of $A$.
  • C
    $A$ is not correct but $R$ is correct.
  • D
    $A$ is correct but $R$ is not correct.

Answer

Correct option: B.
Both $A$ and $R$ are correct and $R$ is the correct explanation of $A$.
b
The oxide which form acid on dissolving in water is acidic oxide.

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