The INCORECT statement about linear dimethylopolysiloxane, [ (CH₃)₂ SiO]n, is · ABC26IN0443
Subject: Inorganic Chemistry · Chapter: Main Group Elements · Topic: Main Group Element – General · Exam: GATE 2005-2021 · Marks: 2 · Difficulty: Easy
The INCORECT statement about linear dimethylopolysiloxane, $\left[\left(\mathrm{CH}_{3}\right)_{2} \mathrm{SiO}\right]_{\mathrm{n}}$, is
(a)it is extremely hydrophilic
(b)it is prepared by a KOH catalysed ring - opening reaction of $\left[\mathrm{Me}_{2} \mathrm{SiO}\right]_{4}$
(c)it has a very low glass transition temperature
(d)it can be reinforced to give silicon elastomers
Answer
Answer: A ✓ checked by 4AB · confidence high
Explanation
PDMS is strongly hydrophobic, so 'extremely hydrophilic' is the incorrect statement (a).
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