HSC Science (Electronics) इयत्ता १२ वी - Maharashtra State Board Question Bank Solutions for Chemistry

Answer the following.

Write name and formula of raw material from which bakelite is made.

Identify condensation polymers and addition polymers from the following.

\[\begin{array}{cc}\ce{-(CH2 - CH -)_{n}}\\
\phantom{....}|\\\ce{\phantom{.......}C6H5}
\end{array}\]

Identify condensation polymers and addition polymers from the following.

-(CH₂ - CH = CH - CH₂ -)_n

Identify condensation polymers and addition polymers from the following.

-(CO(CH₂)₄ - CONH(CH₂)₆NH-)_n

Identify condensation polymers and addition polymers from the following.

Attempt the following:

Write the chemical reactions involved in the manufacture of Nylon 6,6.

Attempt the following:

Explain the vulcanisation of rubber. Which vulcanizing agents are used for the following synthetic rubber?
a. Neoprene
b. Buna-N

Write the reaction involved in the formation of:

Bakelite

Attempt the following:

What is meant by LDP and HDP? Mention the basic difference between the same with suitable examples.

How will you illustrate the use of a safer solvent and auxiliaries?

Answer the following

Define catalyst.

Write preparation, properties, and uses of Teflon.

Explain any three principles of green chemistry.

Answer the following:

Explain the atom economy with a suitable example.

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How will you illustrate the principle, minimization of steps?

Answer the following.

Is synthetic rubber better than natural rubber? If so, in what respect?

Answer the following.

Write main specialities of Buna-S, Neoprene rubber?

Write the structure of isoprene and the polymer obtained from it.

How are amines classified?

Answer the following

Give two examples of catalysts.