Given below are two statements. Read the statements carefully and select the correct option.
Statement I: A reaction in which a single product is formed from two or more reactants is known as a combination reaction.
Statement II: Calcium oxide reacts vigorously with water to produce slaked lime (calcium hydroxide); this is a combination reaction.
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A.
Both Statements I and II are true.
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B.
Statement I is true but Statement II is false.
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C.
Both Statements I and II are false.
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D.
Statement I is false but Statement II is true.
Correct Answer:
A. Both Statements I and II are true.
Explanation:
Statement I describes a combination reaction, which is defined as a chemical process where two or more substances (reactants) merge to create a single new substance (product). This is a standard definition in chemistry, making the statement true. Statement II provides a specific example of this process: the reaction between calcium oxide (quicklime) and water. When these two substances react, they vigorously produce a single product, calcium hydroxide (slaked lime), accompanied by the release of heat. Since this reaction involves two reactants forming one product, it correctly classifies as a combination reaction. Therefore, both statements are accurate.
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