Question
Define rubber.

Answer

Polymers which are elastic in nature are called rubber.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A solution of citric acid $C_6H_8O_7$​​​​​​​ in $50\ g$ of acetic acid has a boiling point elevation of $1.76\ K.$ If $K_b$​​​​​​​​​​​​​​ for acetic acid is $3.07\ K\ kg mol^{-1}$​​​​​​​, what is the molality of solution?
Draw (A) enantiomers and (B) cis and trans isomers of $[Cr(H_2O)_2(OX)_2]$ :
Write a note on 'aldol' condensation reaction of ethanal. Write chemical reaction involved when benzaldehyde is treated with concentrated caustic potash.
Write four' uses of hydrochloric acid.
Write chemical formula of the following oxoacids of chlorine:
$(a)$ Hypochlorous acid $(b)$ chlorous acid $(c)$ chloric acid $(d)$ perchloric acid.
The enthalpy change for the reaction, $C2H4(g) + H2(g) \rightarrow C2H6(g) is -620 J$ when $100\ ml$ of ethylene and $100\ mL$ of $H2$ react at $1$ bar pressure. Calculate the pressure volume type of work and $\triangle U$ for the reaction.
Write a note on Clemmensen reduction.Explain Clemmeusen’s reduction.Explain the reduction of carbonyl group into methylene group.
What are anode and cathode of $H2-O2$ fuel cell ? Name the electrolyte used in it. Write electrode reactions and net cell reaction taking place in the fuel cell.
Carboxylic acids are more acidic than phenols and alcohols. Explain. Why?
What are ligands? What are their types? Give one example of each type.
Which of the following species are reducing agents? Arrange them in order of increasing strength under standard state conditions. The standard potentials are given in parenthesis.
$K (-2.93V), Br_2(1.09V), Mg(-2.36V), Co^{3+}(1.61V), Ti^{2+}(-0.37V), Ag^+(0.8V), Ni (-0.23V)$.