Which contains both polar and non-polar bonds ? .

Options

A. `NH_(4)^(+)`
B. HCl
C. `CH_(4)`
D. `H_(2)O_(2)`

Answer

To determine which of the given compounds contains both polar and non-polar bonds, we will analyze each option step by step.

### Step 1: Analyze Ammonium Ion (NH4+)
- The ammonium ion consists of one nitrogen atom bonded to four hydrogen atoms.
- Nitrogen is more electronegative than hydrogen, leading to a partial negative charge on nitrogen and partial positive charges on the hydrogen atoms.
- All N-H bonds are polar due to the electronegativity difference.
- **Conclusion**: All bonds in ammonium ion are polar. This option does not contain both polar and non-polar bonds.

**Hint**: Check the electronegativity of the atoms involved in the bonds.

### Step 2: Analyze Hydrogen Chloride (HCl)
- HCl consists of one hydrogen atom bonded to one chlorine atom.
- Chlorine is more electronegative than hydrogen, resulting in a polar bond with chlorine carrying a partial negative charge and hydrogen a partial positive charge.
- **Conclusion**: The H-Cl bond is polar. This option does not contain both polar and non-polar bonds.

**Hint**: Look for differences in electronegativity between the bonded atoms.

### Step 3: Analyze Methane (CH4)
- Methane consists of one carbon atom bonded to four hydrogen atoms.
- Carbon is slightly more electronegative than hydrogen, but the difference is not significant enough to create polar bonds.
- All C-H bonds are considered non-polar due to the similar electronegativities.
- **Conclusion**: All bonds in methane are non-polar. This option does not contain both polar and non-polar bonds.

**Hint**: Consider whether the bond types are similar or different in terms of electronegativity.

### Step 4: Analyze Hydrogen Peroxide (H2O2)
- Hydrogen peroxide consists of two hydrogen atoms and two oxygen atoms.
- The O-H bonds are polar because oxygen is more electronegative than hydrogen, resulting in partial negative charges on oxygen and partial positive charges on hydrogen.
- The O-O bond, however, is non-polar because it involves two identical oxygen atoms with no electronegativity difference.
- **Conclusion**: Hydrogen peroxide contains both polar (O-H) and non-polar (O-O) bonds.

**Hint**: Identify bonds with identical atoms versus those with different electronegativities.

### Final Conclusion
After analyzing all options, the compound that contains both polar and non-polar bonds is **Hydrogen Peroxide (H2O2)**.

**Final Answer**: H2O2