Day 178: MHT-CET Chemistry

1. A.
   These are softened on heating.
2. B.
   Intermolecular forces involved in these are moderately strong intermediate between elastomers and fibres.
3. C.
   These possess extensive cross linking by covalent bonds.
4. D.
   These can be easily moulded and remoulded.

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1. A.
   (A)-(i), (B)-(ii), (C)-(iii), (D)-(iv)
2. B.
   (A)-(iii), (B)-(ii), (C)-(iv), (D)-(i)
3. C.
   (A)-(iv), (B)-(iii), (C)-(ii), (D)-(i)
4. D.
   (A)-(iii), (B)-(iv), (C)-(ii), (D)-(i)

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1. A.
   $\ Ymoldm\ ^{- 3}{\text{ }s}^{- 1}$
2. B.
   $\ 2Ymol{dm}^{- 3}{\text{ }s}^{- 1}$
3. C.
   $\frac{Y}{2}\text{ }mol{dm}^{- 3}{\text{ }s}^{- 1}$
4. D.
   $\frac{3}{2}Ymol{dm}^{- 3}{\text{ }s}^{- 1}$

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1. A.
   1, 1 - diethyl - 4 - methoxycyclohexane
2. B.
   1, 1 - dimethyl - 4 - methoxycyclohexane
3. C.
   4, 4 - dimethyl - 1 - methoxycyclohexane
4. D.
   4, 4 - Diethyl - 1 - methoxycyclohexane

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1. A.
   $5.5$ kJ
2. B.
   $5.0$ kJ
3. C.
   $6.5$ kJ
4. D.
   $6.0$ kJ

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