Total number of the shared electrons in the $O_{2}O\_2$ molecule.

Total number of the covalent bonds in the compound having molecular formula $C_n{H}_{2n+2}\mathrm{.}C\_nH\_\{2n+2\}.$

Total number of the covalent bonds in the compound having molecular formula $C_n{H}_{2n+2}O\mathrm{.}C\_nH\_\{2n+2\}O.$

Which of the following constitute a pair of homologous?

The constituents of a homologous series differ by mass ________.

Possible IUPAC names of compound $C_3{H}_{6}O\mathrm{.}C\_3H\_6O.$

Which of the following compound contains carboxylic acid functional group?

$C_4{H}_8+x{O}_{2}yC{O}_2+z{H}_{2}O;C\_4H\_8+xO\_2\backslash overset\{Combustion\}\{\backslash longrightarrow\}yCO\_2+zH\_2O;$ the value ‘x’ for complete combustion.

A compound, on burning gives yellow flame with lots of black smoke. The compound will be _______.

You have seen ever, the bottom of cooking vessels getting blacked. Because of ______.

Which of the following is not a fossil fuel?

Which of the following compound burns without flame?

$C{H}_{3}C{H}_{2}C{H}_{2}OHC{H}_{3}C{H}_{2}COOH;CH\_3CH\_2CH\_2OH\backslash overset\{X+heat\}\{\backslash longrightarrow\}CH\_3CH\_2COOH;$ Compound ‘X’ will be _______.

$C{H}_{3}C{H}_{2}OH{C}_2{H}_4{C}_2{H}_6;CH\_3CH\_2OH\backslash overset\{X\}\{\backslash longrightarrow\}C\_2H\_4\backslash overset\{Ni+H\_2\}\{\backslash longrightarrow\}C\_2H\_6;$ Compound ‘X’ will be _______.

Propanoic acid + Butanol $X+H_{2}O;\backslash overset\{Acid\}\{\backslash rightleftharpoons\}X+H\_2O;$  Compound ‘X’ will be ________.