HSC Science (General) १२ वीं कक्षा - Maharashtra State Board Question Bank Solutions

Answer the following.

Write structure of natural rubber and neoprene rubber along with the name and structure of their monomers.

Answer the following.

Name the polymer type in which following linkage is present.

\[\begin{array}{cc}\ce{- C - O -}\\||\phantom{.....}\\
\ce{O\phantom{.....}}\end{array}\]

Answer the following.

Match the following pairs:

Draw the structures of polymers formed from the following monomers

\[\ce{n HOOC–R–COOH + n HO–R'–OH}\]

Answer the following.

Draw the structures of polymers formed from the following monomers

H₂N–(CH₂)₅ – COOH

Name and draw structure of the repeating unit in natural rubber.

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.