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प्रश्न
Answer the following.
Write name and formula of raw material from which bakelite is made.
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उत्तर
Bakelite is made by condensation of two different monomers:
a. Phenol:
b. Formaldehyde: CH2O
APPEARS IN
संबंधित प्रश्न
Write any ‘two’ uses of terylene.
Bakelite is the polymer of:
(a) Benzaldchyde and phenol
(b) Acetaldehyde and phenol
(c) Formaldehyde and phenol
(d) Formaldehyde and benzyl alcohol
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(A) LDPE
(B) PHBV
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Answer the following.
Match the following pairs:
| Name of polymer | Monomer |
| 1. Teflon | a. CH2 = CH2 |
| 2. PVC | b. CF2 = CF2 |
| 3. Polyester | c. CH2 = CHCl |
| 4. Polythene | d. C6H5OH and HCHO |
| 5. Bakelite | e. Dicarboxylic acid and polyhydoxyglycol |
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\[\ce{n HOOC–R–COOH + n HO–R'–OH}\]
Name and draw structure of the repeating unit in natural rubber.
Write the reaction involved in the formation of:
Bakelite
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write the structure of the monomer used in natural rubber.
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Identify additional polymers from the following.
I. \[\begin{array}{cc}
\ce{-(CH2 - CH -)_{{n}}}\\
\phantom{....}|\\
\phantom{.......}\ce{C6H5}
\end{array}\]
II. \[\ce{-(CH2 - CH = CH - CH2 -)_{{n}}}\]
III. \[\ce{-(CO(CH2)4 - CONH(CH2)6NH -)_{{n}}}\]
IV.
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Name and draw structure of the repeating unit in natural rubber.
Write the structure and name of monomer of Natural rubber.
Write the structure of isoprene and the polymer obtained from it.
Name and draw structure of the repeating unit in natural rubber.
Name and draw structure of the repeating unit in natural rubber.
Write the structure of isoprene and the polymer obtained from it.
Name and draw structure of the repeating unit in natural rubber.
Write the structure of isoprene and the polymer obtained from it.
Write the structure of isoprene and the polymer obtained from it.
Write the structure of isoprene and the polymer obtained from it.
