Which of the following hydrocarbons does not decolourise bromine water?

Which of the following statements is not correct?

$2 \mathrm{mL}$ of ethanoic acid was taken in each of the three test tubes A, B and C. To these test tubes $2 \mathrm{mL}, 4 \mathrm{mL}$ and $8 \mathrm{mL}$ of water was added respectively. Which test tube will give a clear solution?

Compound $\mathrm{X}$ has the molecular formula ${\mathrm{C}}_2{\mathrm{H}}_6\mathrm{O}$.

1. $\mathrm{X}$ can be made by fermentation process.

2. $\mathrm{X}$ can be oxidised to $\mathrm{Y}$.

3. $\mathrm{X}$ can react with $\mathrm{Y}$ to form $\mathrm{Z}$ and water.

To which homologous series do $\mathrm{X}, \mathrm{Y}$ and $\mathrm{Z}$ belong?

Structures of two different forms of carbon are given below.

Identify the two forms and how are they related to each other?

In this section, each question has two matching lists. Choices for the correct combination of elements from List-I and List-II are given as options (a), (b), (c) and (d) out of which one is correct.