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JEE Main202325 Jan 2023Evening ShiftChemistryp Block Elements (Group 13 & 14)Actual

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

Options

  1. ABoth A and R are correct but R is NOT the correct explanation of A.
  2. BBoth A and R are correct and R is the correct explanation of A.
  3. CA is not correct but R is correct.
  4. DA is correct but R is not correct.

Correct answer

B. Both A and R are correct and R is the correct explanation of A.

Step-by-step solution

Carbon monoxide (CO) is neutral and carbon dioxide (CO 2 ) is acidic in nature because with the increase in the oxidation state carbon's acidic strength increases. So, the Assertion is correct CO 2 combines with water to form carbonic acid while CO is sparingly soluble in water. So, Reason is also correct and is the correct explanation of Assertion. So, correct option is B.

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