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Select the incorrect statement...

Select the incorrect statement

A

Double bond is shorter than a single bond

B

sigma bond is weaker than a `pi` bond

C

double bond is stronger than a hydrogen bond

D

covalent bond is stroger than a hydrogen bond

Text Solution

AI Generated Solution

The correct Answer is:
To determine the incorrect statement from the given options, we will analyze each statement one by one. ### Step 1: Analyze the first statement **Statement:** Double bond is stronger than single bond. **Analysis:** This statement is true. A double bond involves the sharing of two pairs of electrons between two atoms, while a single bond involves only one pair. Therefore, more energy is required to break a double bond than a single bond. **Conclusion:** This statement is correct. ### Step 2: Analyze the second statement **Statement:** Sigma bond is weaker than pi bond. **Analysis:** This statement is false. A sigma bond is formed by the head-on overlapping of atomic orbitals, which results in a strong bond due to maximum electron density between the nuclei of the bonding atoms. In contrast, a pi bond is formed by the sidewise overlapping of p orbitals, which is generally weaker than a sigma bond. Thus, sigma bonds are stronger than pi bonds. **Conclusion:** This statement is incorrect. ### Step 3: Analyze the third statement **Statement:** Double bond is stronger than hydrogen bond. **Analysis:** This statement is true. A double bond is a type of covalent bond, which is generally much stronger than a hydrogen bond. Hydrogen bonds are relatively weak interactions compared to covalent bonds. **Conclusion:** This statement is correct. ### Step 4: Analyze the fourth statement **Statement:** Covalent bond is stronger than hydrogen bond. **Analysis:** This statement is also true. Covalent bonds involve the sharing of electron pairs between atoms and are significantly stronger than hydrogen bonds, which are weak attractions between a hydrogen atom and an electronegative atom. **Conclusion:** This statement is correct. ### Final Conclusion The only incorrect statement among the options provided is the second statement: "Sigma bond is weaker than pi bond." Therefore, the answer is option two. ---
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