Identify the polymer used to obtain LCD screen from following.

Identify the product X in the following reaction.

Sodium propanoate $\xrightarrow[\Delta]{\text { soda-lime }} \mathrm{X}+$ sodium carbonate

Which of the following changes involves transfer of 5 electrons?

Identify order of following reaction.

$$\mathrm{H}_2 \mathrm{O}_{2(\mathrm{~g})} \longrightarrow 2 \mathrm{H}_2 \mathrm{O}_{(\mathrm{l})}+\mathrm{O}_{2(\mathrm{~g})}$$