The bond that is formed by the sharing of an equal number of electrons between two atoms is called _______________.

The IUPAC name of the following compound is:

When water gas is mixed with half its volume of hydrogen and the mixture is compressed 300 atmospheric pressure and passed over $\mathrm{ZnO}.{\mathrm{Cr}}_2{\mathrm{O}}_3$ catalyst a colourless liquid is obtained which is used as a solvent for paint and varnishes. The liquid will be 

According to the IUPAC system which type of compound is shown by the given structure:

Identify the correct order of boiling points of the following compounds 

(A) ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{OH}$

(B) ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{CHO}$

(C) ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{COOH}$

IUPAC name of the following compound will be

Give one phrase for the following statement:

The tendency of an element to form chains of identical atoms.

Which of the following is the ketone functional group, $\mathrm{R}=(-{\mathrm{CH}}_3)$, $\mathrm{R}$ is Alkyl group.