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In the following questions a statement o...

In the following questions a statement of assertion (A) is followed by a statement of reason ( R)
A : Cu, Ag, Au are known as coinage metal.
R: Coinage metals are d-block metals .

A

If Both Assertion & Reason are true and the reason is the correct explanation of the assertion then mark (1) .

B

If both Assertion & Reason are true but the reason is not the correct explanation of the assertion then mark (2)

C

If Assertion is true statement but Reason is false then mark (3)

D

If both Assertion and Reason are false statements then mark (4)

Text Solution

AI Generated Solution

The correct Answer is:
To analyze the assertion and reason provided in the question, we will evaluate both statements step by step. ### Step 1: Evaluate the Assertion (A) **Assertion (A): Cu, Ag, Au are known as coinage metals.** - **Explanation**: Copper (Cu), Silver (Ag), and Gold (Au) are indeed referred to as coinage metals. Historically, these metals have been used to mint coins due to their desirable properties such as malleability, ductility, and resistance to corrosion. This statement is correct. ### Step 2: Evaluate the Reason (R) **Reason (R): Coinage metals are d-block metals.** - **Explanation**: Coinage metals (Cu, Ag, Au) are found in Group 11 of the periodic table, which is part of the d-block elements. The d-block elements are characterized by the presence of d-orbitals in their electron configuration. Therefore, this statement is also correct. ### Step 3: Analyze the Relationship Between A and R - **Explanation**: While both the assertion and reason are true, the reason provided does not fully explain the assertion. The reason states that coinage metals are d-block metals, but it does not clarify why Cu, Ag, and Au are specifically known as coinage metals. The relationship is not sufficiently explanatory. ### Conclusion - **Final Evaluation**: - Assertion (A) is true. - Reason (R) is true. - However, R does not adequately explain A. ### Final Answer - The assertion is true, and the reason is true, but the reason is not a correct explanation of the assertion. ---
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