Download App

Chemistry in Everyday Life — Chemistry STD 12 — Question

Tamilnadu BoardEnglish MediumSTD 12ChemistryChemistry in Everyday Life2 Marks
Question
What is the difference between elastomers and fibres? Give one example of each.
✓

Answer

Elastomers
  1. These are rubber like solids with elastic properties.
  2. These are held by the weak inter – molecular forces.
  3. Example: Buna-S and Buna-N.
Fibres
  1. These are th thread forming solids which possess high tensile strength and high modulus.
  2. These are held together by strong intermolecular forces like hydrogen bonding.
  3. Example: Nylon 6, 6 and polyesters (terylene)

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

Explore more

More "[ 2 Marks Questions ]" from Chemistry in Everyday Life→Chemistry in Everyday Life — all question types→Chemistry STD 12 question papers→Tamilnadu Board STD 12 question papers→Tamilnadu Board question paper generator→

Similar questions

 The same amount of electricity was passed through two separate electrolytic cells containing solutions of nickel nitrate and chromium nitrate respectively. If 2.935 g of Ni was deposited in the first cell. The amount of Cr deposited in the another cell?
Given: molar mass of Nickel and chromium are 58.74 and $52 gm ^{-1}$ respectively.
→
What is the effect of catalyst on the activation energy? Why?
→
Explain the action of $Br _2$ water with aniline.
→
Write the mechanism of acid catalysed dehydration of ethanol to give ethene.
→
How would you prepare p – nitro from aniline?
→
What happens when nitrobenzene Is treated with Ni (or) Pt (or) $LiAlH _4$ ?
→
What happens when nitrous acid is treated iith N, N – dimethyl aniline?
→
For a reaction, $A+B \rightarrow$ product; the rate law is given by $r=k[A]^{1 / 2}[B]^2$. What is the order of the reaction?
→
Complete the following reactions.
→
Explain Cyanide leaching.
→