HSC Science (General) इयत्ता १२ वी - Maharashtra State Board Question Bank Solutions

Write the name of biodegradable polymer formed by two amino acids namely glycine and ε-amino caproic acid.

Write the name of raw material used for preparation of nylon 6, 6 polymer.

Write a chemical reaction for the preparation of the following polymer.

polyacrylonitrile

write the structure of the monomer used in natural rubber.

Write preparation of low density polythene.

Mention two uses of LDP.

Write chemical reaction for preparation of the following.

Buna-S

Write chemical reaction for preparation of the following.

Neoprene

Write the name of one example of each polymer in which following repeating units.

\[\begin{array}{cc}
\ce{(-CF2-CF2-), -[NH-(CH2)5-CO] -, -(CH2-CH-), (-CH2-CH2-)}\\
\phantom{............................}|\\
\phantom{..............................}\ce{CN}
\end{array}\]

Write the name and formulae of the monomers used for the preparation of dacron.

Write chemical reactions for the preparation of high-density polythene.

Write two uses and two properties of polythene.

Explain vulcanization of rubber.

Define rubber.

Explain the reactions involved in the preparation of viscose rayon.

The coordination number of atoms in body-centred cubic structure (bcc) is ______.

The correct formula for the complex compound, sodium hexacyanoferrate (III) is ______.

Write the name of biodegradable polyamide copolymer.

One mole of an ideal gas is expanded isothermally and reversibly from 10 L to 15 L at 300 K. Calculate the work done in the process.

How many moles of electrons are required for reduction of 2 moles of Zn²⁺ to Zn? How many Faradays of electricity will be required?