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JEE Main 202325 JanuaryEvening Shift
Exam
JEE Main
Year
2023
Date
25 January
Shift
Evening Shift
Subject
Chemistry
Chapter
p Block Elements (Group 13 & 14)

JEE Main 2023 · 25 January · Evening Shift · Chemistry · p Block Elements (Group 13 & 14)

Given below are two statements, one is labelled as Assertion A and...

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 COCO and CO2{CO}_{2}. COCO is neutral whereas CO2{CO}_{2} is acidic in nature.

Reason R : CO2{CO}_{2} can combine with water in a limited way to form carbonic acid, while COCO is sparingly soluble in water.

In the light of the above statements, choose the most appropriate answer from the options given below :-

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 (CO2) is acidic in nature because with the increase in the oxidation state carbon's acidic strength increases. So, the Assertion is correct

CO2 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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