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Question
Assertion: Formaldehyde is a planar molecule.
Reason: It contains sp2 hybridised carbon atom.
Options
Assertion and reason both are correct and reason is correct explanation of assertion.
Assertion and reason both are wrong statements.
Assertion is correct statement but reason is wrong statement.
Assertion is wrong statement but reason is correct statement.
Assertion and reason both are correct statements but reasson is not correct explanation of assertion.
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Solution
Assertion and reason both are correct and reason is correct explanation of assertion.
Explanation:
The smallest aldehyde is formaldehyde. It features a triangular planar shape with two bond pairs and no lone pairings. C and O share one pair of electrons in their double bond. As a result, the C atom is sp2 hybridized. As a result, both Assertion and Reason are true.
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\[\begin{array}{cc}
\ce{O}\phantom{...............................................}\\
||\phantom{...............................................}\\
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