Polarity and Structure of CH2O

The video tutorial explains the polarity of the CH2O molecule by examining its Lewis structure and 3D model. The molecule is unsymmetrical with a significant difference in electronegativity between the oxygen and hydrogen atoms, making it polar. The 3D model shows a trigonal planar shape, and the surface analysis reveals distinct positive and negative poles, confirming its polarity.

What makes the CH2O molecule unsymmetrical?

• The linear arrangement of atoms

• The attachment of different atoms to the central carbon

• The presence of a central nitrogen atom

• The presence of two oxygen atoms

Why is the CH2O molecule considered polar?

• Because it contains only hydrogen atoms

• Due to the difference in electronegativity between oxygen and hydrogen

• Due to the presence of a central nitrogen atom

• Because it has a symmetrical shape

What is the shape of the CH2O molecule as seen in the three-dimensional model?

• Tetrahedral

• Bent

• Trigonal planar

• Linear

In the three-dimensional model, where is the oxygen atom located?

• On the side

• At the top

• In the center

• At the bottom

What results from the difference in electronegativity in the CH2O molecule?

• Creation of a symmetrical structure

• Increase in molecular weight

• Formation of a non-polar molecule

• Development of poles

What does the surface analysis of the CH2O molecule reveal?

• The molecule has no distinct poles

• The molecule is non-polar

• The top is more positive and the bottom is more negative

• The top is more negative and the bottom is more positive

What is the final conclusion about the CH2O molecule?

• It is a polar molecule

• It is a symmetrical molecule

• It is a linear molecule

• It is a non-polar molecule