Question

Assertion (A): Reactions between ions in solution are usually much faster than reactions between covalent substances. Reason (R): Covalent compounds are not soluble in water.

• A. Both (A) and (R) are correct and (R) is the correct explanation of (A)
• B. Both (A) and (R) are correct but (R) is not the explanation
• C. (A) is correct but (R) is not correct
• D. (A) is not correct but (R) is correct

Hint:

Ionic reactions are fast because they are just "finding partners," not "breaking chains."

Answer 1

The Correct Option is C

Step 1: Concept Reaction speed depends on the energy required to break bonds and form new ones.

Step 2: Meaning Ionic reactions involve pre-existing ions in solution. There are no strong covalent bonds to break, just the electrostatic attraction to find a partner, making them nearly instantaneous.

Step 3: Analysis Assertion (A) is correct because covalent reactions require energy to break old bonds (activation energy). Reason (R) is false because many covalent compounds (like sugar, alcohols, or HCl) are highly soluble in water. Solubility is not the reason for the speed difference.

Step 4: Conclusion Since (A) is a factual chemistry principle and (R) is a generalization that is factually incorrect, option (C) is the answer. Final Answer: (C)