Question Detail

CHM 101 CHM 101 Past Questions Objective Question
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Question

Examples of chemical changes include all of the following except?
Options
A Burning hydrogen in oxygen
B Dissolution of potassium trioxonitrate (V) salts in water
Correct Answer
C Reaction of sodium with water
D Decomposition of trioxocarbonate (TV) salts
Correct Answer

Option B is the correct answer.

Detailed Explanation

Dissolution of KNO₃ in water is a physical change (dissociation into ions) as no new substance is formed. The other options involve chemical reactions forming new substances.

Hint

Dissolution of many salts is a physical change, not chemical.

Question Info

Course: CHM 101
Topic: CHM 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 1052 of 1872
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