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.

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

Answer the following

1 nm = _________m ?

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

Define the following term:

Nanoscience

Answer the following

Define the following term: Nanotechnology

Answer the following

Define the following term: Nanomaterial

Define the Nanochemistry.

Write the reaction involved in the formation of:

Bakelite

Answer the following

Which nanomaterial is used in sunscreen lotion? Write its use.

Attempt the following:

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

Write preparation, properties, and uses of Teflon.

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.

Answer in brief.

Write formulae of the following complex.

Dicyanoaurate (I) ion