Chemical Properties of Carbon Compounds

$1$ mole of ethene and $1$ mole of ethyne are separately made to completely undergo addition reaction to form the respective saturated compound.
Which of the following will be different for the two reactions?
$\left(\mathrm{P}\right)$ The number of moles of the saturated compound formed.
$\left(\mathrm{Q}\right)$ The number of moles of the hydrogen consumed.

On undergoing complete combustion in an adequate supply of oxygen, an organic compound produces only carbon dioxide and water vapour as the products. 

Based on this information, Which of the following homologous series could the compound belong to?

$\left(\mathrm{P}\right)$ alkanes
$\left(\mathrm{Q}\right)$ alcohols
$\left(\mathrm{R}\right)$ aldehydes

Bromine water is a reddish solution of bromine in water. When shaken with an unsaturated hydrocarbon, the red colour of the bromine water disappears because the bromine is used up in an addition reaction.
Kohli has three test tubes containing hexane, hexene and hexyne respectively. Which of the three compounds can he identify using the bromine water test? Give a reason for your answer.

With the reference to four gases ${\mathrm{CO}}_2, \mathrm{CO}, {\mathrm{Cl}}_2$ and ${\mathrm{O}}_2$, which one of the options in the table is correct?

What substance should be oxidized to prepare ${\mathrm{CH}}_3\mathrm{COOH}$?

Which of the following will give addition reactions and why?

${\mathrm{C}}_4{\mathrm{H}}_{10}, {\mathrm{C}}_2{\mathrm{H}}_6, {\mathrm{C}}_2{\mathrm{H}}_4, {\mathrm{CH}}_4, {\mathrm{C}}_3{\mathrm{H}}_8, {\mathrm{C}}_3{\mathrm{H}}_4$

A neutral organic compound X with molecular formula ${\mathrm{C}}_2{\mathrm{H}}_6\mathrm{O}$, on oxidation with potassium dichromate and sulphuric acid gives an acidic compound Y. The compound X on warming with Y in presence of concentrated sulphuric acid gives a sweet smelling substance Z. Identify X, Y and Z.

Match the reactions given in Column A with names given in Column B.

Name the gas evolved when ethanoic acid is added to sodium carbonate. How would you prove the presence of this gas.

When a vegetable oil is treated with hydrogen in the presence of nickel (or palladium) catalyst, it forms fat. This is an example of: