Explain why is O=C=O non-polar while R-O-R is polar.

Explain: why N_(2)" and "F_2 are non-polar and HF is polar?

Explain why [Ti (H_2O)_6]^(3+) is violet while [Ti (H_2O)_6]^(4+) is colourless.

Predict the product of reaction of aniline with bromine in non-polar solvent such as CS_2 .

What are non-polar covalent bonds ?

CO_2 is non-polar, while H_(2)O is polar. What conclusion do you draw about their structures?

Read the given passage and answers following questions : The cleansing action of soap is due to emulsification and micelle formation. Soaps are basically sodium and potassium salts of long chain fatty acids, R-COO- Na^(+) . The end of the molecule to which the sodium is attached is polar in nature, while the alkyl-end is non-polar. Thus, a soap molecule contains a hydrophilic (polar) and a hydrophobic (nonpolar) part. When soap is added to water containing dirt, the soap molecules surround the dirt particles in such a manner that their hydrophobic parts get attached to the dirt molecule and the hydrophilic parts point away from the dirt molecule. This is known as micelle formation. Thus, we can say that the polar group dissolves in water while the non-polar group dissolves in the dirt particle. Now, as these micelles are negatively charged, they do not coalesce and a stable emulsion is formed. What is polar and non-polar groups ?

CuSO_4 .5H_2O is blue in colour while CuSO_4 is colourless. Why ?