Chemistry · Concept of atom, molecule, element and compound
Assertion Element can form different compound. Reason Any substance that contain
Assertion Element can form different compound. Reason Any substance that contains only one kind of an atom is known as an element.
- A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
- B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
- C. Assertion is correct but Reason is incorrect
- D. Both Assertion and Reason are incorrect
Step-by-step solution
The assertion that elements can form different compounds is correct (e.g., carbon forms CO and CO2). The reason correctly defines an element as a substance with only one kind of atom. However, the definition of element does not explain why elements can form multiple compounds; that depends on chemical bonding and variable valency, not on the definition itself. Hence, both statements are true but the reason is not the correct explanation.
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