Question

_ compound are generally volatile in nature​

Answer 1

Answer:

VOC (volatile organic compounds) are all compounds that appear in the gas chromatogram between and including n-hexane and n-hexadecane. Compounds appearing earlier are called VVOC (very volatile organic compounds); compounds appearing later are called SVOC (semi-volatile organic compounds

Answer 2

Covalent compounds have lower melting and boling points than ionic compounds. Ionic compounds form giant lattices, there are no "molecules" as such, only stoichometric units, such as NaCl. For ions to break away from this lattice into the vapour phase needs a lot of energy. In contrast covalent compounds form single well defined molecules which interact with each other by intermolecular forces such as hydrogen bonding etc. These forces are weaker than the forces which keep the lattice of ionic compounds together. Hence the difference in volatility.

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