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The substances A and B when brought toge...

The substances A and B when brought together form a substance C with the evolution of heat. The substance C is

A

a compound

B

an element

C

a mixture

D

none of these

Text Solution

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The correct Answer is:
To solve the question "The substances A and B when brought together form a substance C with the evolution of heat. The substance C is:", we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Reaction Type**: - When substances A and B are combined and a new substance C is formed, it indicates that a chemical reaction has occurred. 2. **Observe Heat Evolution**: - The mention of heat evolution during the formation of substance C suggests that the reaction is exothermic. This is a characteristic of many chemical reactions where new bonds are formed, releasing energy in the form of heat. 3. **Determine the Nature of Substance C**: - Since a new substance C is formed that is different from both A and B, we can conclude that C is not merely a mixture of A and B. In a mixture, the individual properties of A and B would still be present. 4. **Differentiate Between Compounds and Mixtures**: - In a compound, the properties of the resulting substance (C) are entirely different from those of the reactants (A and B). The formation of a compound involves a chemical change, which is consistent with the heat evolution observed. 5. **Conclusion**: - Therefore, since C is formed from A and B through a chemical reaction with the evolution of heat, we conclude that substance C is a **compound**. ### Final Answer: Substance C is a **compound**. ---
To solve the question "The substances A and B when brought together form a substance C with the evolution of heat. The substance C is:", we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Reaction Type**: - When substances A and B are combined and a new substance C is formed, it indicates that a chemical reaction has occurred. 2. **Observe Heat Evolution**: ...
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