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Assertion : C Cl(4) is a non-polar mole...

Assertion : ` C Cl_(4)` is a non-polar molecule.
Reason : `C Cl_(4)` has polar bonds.

A

If assertion is true but the reason is false

B

If assertion is false but reason is true

C

IF both assertion and reason are true and the reason is the correct explanation of assertion

D

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

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the assertion and reason about CCl₄ (carbon tetrachloride), we will break down the concepts step by step. ### Step 1: Understand the Assertion The assertion states that CCl₄ is a non-polar molecule. To evaluate this, we need to consider the molecular geometry and symmetry of CCl₄. **Hint:** Look at the molecular structure and symmetry to determine polarity. ### Step 2: Determine the Geometry of CCl₄ CCl₄ has a tetrahedral geometry due to the sp³ hybridization of the carbon atom. This means that the four chlorine atoms are arranged symmetrically around the central carbon atom. **Hint:** Remember that the shape of the molecule plays a crucial role in determining its polarity. ### Step 3: Analyze the Bonds in CCl₄ Each C-Cl bond is polar because chlorine is more electronegative than carbon. This creates a dipole moment in each bond, with chlorine carrying a partial negative charge (δ-) and carbon carrying a partial positive charge (δ+). **Hint:** Consider the electronegativity values of the atoms involved to assess bond polarity. ### Step 4: Evaluate the Overall Polarity Even though CCl₄ has polar bonds, the symmetrical tetrahedral shape means that the dipole moments of the four C-Cl bonds cancel each other out. This results in a net dipole moment of zero, making the molecule non-polar. **Hint:** Think about how the arrangement of polar bonds affects the overall dipole moment. ### Step 5: Understand the Reason The reason states that CCl₄ has polar bonds. This statement is true because of the difference in electronegativity between carbon and chlorine. **Hint:** Identify whether the reason provides a valid explanation for the assertion. ### Step 6: Conclusion Both the assertion and the reason are true: - The assertion (CCl₄ is a non-polar molecule) is true because the dipole moments cancel out due to symmetry. - The reason (CCl₄ has polar bonds) is also true, but it does not explain why CCl₄ is non-polar. Therefore, the correct conclusion is that both the assertion and the reason are true, but the reason is not the correct explanation for the assertion. ### Final Answer Both the assertion and the reason are true, but the reason is not the correct explanation for the assertion.
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