JEE Main 2023Chemistryp Block Elements (Group 13 & 14)MediumMCQ

JEE Main 2023 — p Block Elements (Group 13 & 14) Question with Solution

JEE Main 2023 (25 Jan Shift 2)

Question

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 CO2. CO is neutral whereas CO2 is acidic in nature.

Reason R :  CO2 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 :-

Choose an option

Show full solutionCorrect option: B
Correct answer
BBoth A and R are correct and R is the correct explanation of A.

Step-by-step explanation

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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About this question

This is a previous-year question from JEE Main 2023, covering the p Block Elements (Group 13 & 14) chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.