Correct Answer: Plaster of Paris
Subject: 2025
Explanation: • <b>Key Fact</b>: The question tests <b>Baking Powder</b>.<br>• <b>Additional Info</b>: Remember the defining rule/fact for this topic.<br>• <b>Why the other options are wrong</b>: They do not satisfy the stated condition or refer to a different fact/concept.<br>• <b>Exam Trick</b>: Identify the exact keyword and apply the relevant rule before looking at the options.<br>• <b>Final Answer</b>: Plaster of Paris.