Question

correct order for C-H bond length for CH3F,CH2F2,CHF3,CH4​

Answer 1

The correct sequence is CHF3, CH2F2, CH3F, and CH4.

What are the properties of the bond length:

• The C−F bond length decreases in the order: CH3F>CH2F2>CHF3.

• The partial positive charge on the C atom grows as the number of F atoms increases.

• As a result, it draws the electron bond pair more strongly.

• As a result, binding strength improves while bond length reduces.

• For given compounds, the shape is not perfectly tetrahedral.

• This is due to the fact that none of the four atoms linked to the core carbon atom are identical.

• As a result, the bond lengths and angles differ.

• For certain substances, the dipole moment is non-zero.

• Individual bond dipoles do not cancel each other, hence they do not cancel each other.

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