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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 solve the question, we will analyze both the assertion (A) and the reason (R) given in the statement. ### Step 1: Analyze the Assertion (A) - The assertion states that "Cu, Ag, Au are known as coinage metals." - Coinage metals are traditionally defined as metals that have been historically used to make coins. - Copper (Cu), Silver (Ag), and Gold (Au) have been used for this purpose for centuries, thus confirming that the assertion is true. ### Step 2: Analyze the Reason (R) - The reason states that "Coinage metals are d-block metals." - The d-block of the periodic table consists of transition metals, which include elements like Copper (Cu), Silver (Ag), and Gold (Au). - Copper is a 3d element, Silver is a 4d element, and Gold is a 5d element, all of which belong to the d-block of the periodic table. - Therefore, this reason is also true. ### Step 3: Determine the Relationship Between A and R - While both the assertion and the reason are true, we need to assess whether the reason correctly explains the assertion. - The reason states that coinage metals are d-block metals, but not all d-block metals are used for making coins. There are many d-block metals that do not qualify as coinage metals. - Thus, while the reason is true, it does not serve as a correct explanation for the assertion. ### Conclusion - Both the assertion (A) and the reason (R) are true, but the reason is not the correct explanation for the assertion. - Therefore, the correct answer to the question is that both statements are true, but the reason does not explain the assertion. ### Final Answer - Both A and R are true, but R is not the correct explanation for A. ---
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