Home
Class 11
CHEMISTRY
Assertion: Silicones are hydrophobic in ...

Assertion: Silicones are hydrophobic in nature.
Reason: `Si-O-Si` linkage are moisture sensitive.

A

If both assertion and reason are true, and reason is the true explanation of the assertion.

B

If both assertion and reason are true, but reason not is the true explanation of the assertion.

C

If assertion is true, but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
C
Correct reason. Si atoms in silicones are surrounded by non-polar alkyl groups, which repel water molecules.
Promotional Banner

Topper's Solved these Questions

  • SOME p-BLOCK ELEMENTS

    PRADEEP|Exercise Competition Focus (JEE( Main and Advanced)/Medical Entrance) VII. Numerical Value Type Questions|1 Videos

  • SOLID STATE

    PRADEEP|Exercise Advanced problems|19 Videos

  • STATES OF MATTER : GASES AND LIQUIDES

    PRADEEP|Exercise VIII. ASSERTION-REASON TYPE QUESTIONS (TYPE-II)|12 Videos

Similar Questions

Explore conceptually related problems

Assertion (A) : Silicones are hdyreopbhobic in nature . Reason (R) : Si -O - Si likages are moisture sensitive .

Assertion (A) : Silicons are water repelling in nature. Reason (R ) : Silicons are organosilicon polymers, which have (-R_(2)SiO-) as repeating unit.

Assertion. Sucrose is a non-reducing sugar. Reason. It has glycosidic linkage.

Assertion: Si-Si bonds are much weaker than Si-O bonds. Reason: Silicon forms double bonds with itself.

The questions given below consist of Assertion (A) and Reason (R ) . Use the following key to select the correct answer. Assertion : The ligands nitrio-N and nitrio-O are ambident in nature . Reason : The ligands give linkage isomers.

Assertion: Silicones are resistant to heat, oxidation and most chemicals. Reason: The silicones (a) have stable silica-like six electron owning the high bond energy of Si-O bond and (b) have high strength of Si-C

PRADEEP-SOME p-BLOCK ELEMENTS-Competition Focus (JEE( Main and Advanced)/Medical Entrance) VIII. Assertion-Reason Type Questions (Type I)
  1. Statement-1. Aluminium acts as a strong affinity for oxygen. Stateme...

    Text Solution

    |

  2. Statement I In water, orthoboric acid behaves as a weak monobasic acid...

    Text Solution

    |

  3. In B(2)H(6), there is no B-B bond. The B(2)H(6).2NH(3) adduct on hea...

    Text Solution

    |

  4. Statement-1. (SiH(3))(H)N is a weaker base than (CH(3))(3)N. Stat...

    Text Solution

    |

  5. Statement-1. Pb^(4+) compounds are stronger oxidizing agent than Sn^(...

    Text Solution

    |

  6. Statement-1. CO(2) is a gas but SiO(2) is a solid at room temperature...

    Text Solution

    |

  7. Assertion. Al and Ga have nearly same atomic radii. Reason. Al and G...

    Text Solution

    |

  8. Assertion: Boron always froms covalent bond. Reason: The small size ...

    Text Solution

    |

  9. Assertion. Coloured cations can be identified by borax bead test. ...

    Text Solution

    |

  10. Borax bead test is not suitable of for Al(III) Al(2)O(3) is insolubl...

    Text Solution

    |

  11. Assertion. SiF(6)^(2-) is known but SiCl(6)^(2-) is not. Reason. Siz...

    Text Solution

    |

  12. Assertion (A): PbCl(2) is more stable than PbCl(4). Reason (R ): P...

    Text Solution

    |

  13. Assertion. PbI(4) is a stable than PbCl(4). Reason. Iodide ion stab...

    Text Solution

    |

  14. Assertion (A) : SnI4 is an orange solid . Reason (R) : The colour ...

    Text Solution

    |

  15. Assertion : Between SiCl(4) and C Cl(4) only SiCl(4) reacts with water...

    Text Solution

    |

  16. Assertion. Diamond is the hardest possible substance and is a networ...

    Text Solution

    |

  17. Assertion (A) Graphite is a good conductor of heat and electicity. ...

    Text Solution

    |

  18. Assertion (A) : C(60) fullerence is an allotrope OF carbon. Reason (...

    Text Solution

    |

  19. Assertion. Carbon monoxide is highly toxic. Reason. Carbon monoxide ...

    Text Solution

    |

  20. Assertion: Silicones are hydrophobic in nature. Reason: Si-O-Si link...

    Text Solution

    |