Although haloalkanes are polar in nature yet they arinsoluble in water. Explain.

Water hyacinth float on water surface. Explain.

(a) Account for the following : (i) Electrophilic substitution reactions in haloarenes occur slowly. (ii) Haloalkanes, though polar, are insoluble in water. (b) Arrange the following compounds in increasing order of reactivity towards S_(N)2 displacement: 2-Bromo-2-Methylbutane, 1-Bromopentane, 2-Bromopentane

Silicones are water repelling in nature due to.

Haloarenes are less reactive than haloalkanes and haloalkenes. Explain.

What is the nature of normal rain water ?

Answer the following : (a) C Cl_(4) is non-polar but CH_(3)Cl is polar. (b) SiF_(4) is non-polar although Si-F bonds are polar. (c ) A hetero-diatomic molecule is always polar.

Explain why the covalent solids are usually soluble in non-polar solvents but are insoluble in polar solvents.

The cause of water cycle in nature is :

Explain the nature of boric acid as a Lewis acid in water.

Alkyl halides are immiscible in water thought they are polar because