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The questions given below consist of Ass...

The questions given below consist of Assertion (A) and Reason (R ) . Use the following key to select the correct answer.
Assertion : In Zeise's salt, co-ordianation number of Pt is five.
Reason : Ethene is a bidentate lignad .

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false.

D

If both asertion and reason are false.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze both the Assertion (A) and the Reason (R) provided. ### Step 1: Analyze the Assertion - **Assertion (A)**: "In Zeise's salt, the coordination number of Pt is five." - Zeise's salt is a coordination compound with the formula [PtCl3(C2H4)]^−. In this compound, platinum (Pt) is coordinated to three chloride ions (Cl^−) and one ethylene molecule (C2H4). - The coordination number is defined as the number of ligand atoms that are bonded to the central metal atom. In this case, Pt is bonded to four ligands (three Cl^− and one C2H4). - Therefore, the coordination number of Pt in Zeise's salt is **4**, not 5. This means the assertion is **false**. ### Step 2: Analyze the Reason - **Reason (R)**: "Ethene is a bidentate ligand." - A bidentate ligand is one that can form two bonds with the central metal atom. Ethene (C2H4) has a double bond between the two carbon atoms, and it does not have two donor atoms to bind to the metal center. - Ethene acts as a **monodentate ligand**, meaning it can only form one bond with the metal. Thus, the reason is also **false**. ### Conclusion - Since both the assertion and the reason are false, the correct answer is that both the assertion and reason are false. ### Final Answer - Both assertion and reason are false.
To solve the question, we need to analyze both the Assertion (A) and the Reason (R) provided. ### Step 1: Analyze the Assertion - **Assertion (A)**: "In Zeise's salt, the coordination number of Pt is five." - Zeise's salt is a coordination compound with the formula [PtCl3(C2H4)]^−. In this compound, platinum (Pt) is coordinated to three chloride ions (Cl^−) and one ethylene molecule (C2H4). - The coordination number is defined as the number of ligand atoms that are bonded to the central metal atom. In this case, Pt is bonded to four ligands (three Cl^− and one C2H4). - Therefore, the coordination number of Pt in Zeise's salt is **4**, not 5. This means the assertion is **false**. ...
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