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प्रश्न
Answer the following in one sentence.
What type of intermolecular force leads to high-density polymer?
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उत्तर
Van der Waals forces between closely packed linear polymeric chains are responsible for high-density polymer.
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संबंधित प्रश्न
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Write the reactions involved in the preparation of PVC
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Bakelite is the polymer of:
(a) Benzaldchyde and phenol
(b) Acetaldehyde and phenol
(c) Formaldehyde and phenol
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H2N–(CH2)5 – COOH
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\[\begin{array}{cc}\ce{-(CH2 - CH -)_{n}}\\
\phantom{....}|\\\ce{\phantom{.......}C6H5}
\end{array}\]
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Attempt the following:
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a. Neoprene
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Is synthetic rubber better than natural rubber? If so, in what respect?
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\[\begin{array}{cc}
\ce{(-CF2-CF2-), -[NH-(CH2)5-CO] -, -(CH2-CH-), (-CH2-CH2-)}\\
\phantom{............................}|\\
\phantom{..............................}\ce{CN}
\end{array}\]
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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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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.
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Write the structure of isoprene and the polymer obtained from it.
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Name and draw structure of the repeating unit in natural rubber.
Write the structure of isoprene and the polymer obtained from it.
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