Home
Class 12
CHEMISTRY
Initiators that can be used in anionic p...

Initiators that can be used in anionic polymerisation is/are
(a) Potassium amide (b) n-butyl lithium (c) `AlCl_(3)` (d) `H_(2)SO_(4)`
The correct answer is

A

only a

B

only a and b

C

only c and d

D

all

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • POLYMERS

    AAKASH SERIES|Exercise Level - I (Exercise - II)|42 Videos

  • POLYMERS

    AAKASH SERIES|Exercise Level - I (Exercise - II) (Assertion (A) & Reason (R) type questions)|21 Videos

  • PERIODIC TABLE

    AAKASH SERIES|Exercise QUESTIONS FOR DESCRIPTIVE ANSWERS|37 Videos

  • PRACTICAL CHEMISTRY

    AAKASH SERIES|Exercise PRACTICE SHEET-5 (Integer answer Type questions)|6 Videos

Similar Questions

Explore conceptually related problems

Initiators that can be used in cationic polymerization is/are (a) KNH_(2) (b) H_(2)SO_(4) (c) BF_(3) with little amount of H_(2)O (d) t-butyl peroxide The correct answer is

Write any two uses each for O_(3) and H_(2)SO_(4) .

(A) AICI_(3) can initiate cationic polymerisation. (R) AICI_(2) can produce H ion with water.

Chain initiation and chain propagation steps are involved in a) Cationic polymerization b) Anionic polymerization Free radical polymerization d) Condensation polymerization The correct answer is

An organic compound ‘A’ has molecular formula C_(9)H_(13)NO and it can be resolve into enantiomers. Adoes not decolourise bromine water solution. A on refluxing with dilute H_(2)SO_(4) , yields another revolvable compound B(C_(9)H_(14)O_(3)) which give effervescence with NaHCO_(3) . B on treatment with NaBH_(4) yields C(C_(9)H_(16)O_(3)) on heating with concentrated H_(2)SO_(4) yields ester D (C_(6)H_(14)O_(2)) . Compound A on reduction with LiAlH_(4) followed by treatment of H_(2)SO_(4) yields following compound : Find out structure of compound 'A''

An organic compound ‘A’ has molecular formula C_(9)H_(13)NO and it can be resolve into enantiomers. Adoes not decolourise bromine water solution. A on refluxing with dilute H_(2)SO_(4) , yields another revolvable compound B(C_(9)H_(14)O_(3)) which give effervescence with NaHCO_(3) . B on treatment with NaBH_(4) yields C(C_(9)H_(16)O_(3)) on heating with concentrated H_(2)SO_(4) yields ester D (C_(6)H_(14)O_(2)) . Compound A on reduction with LiAlH_(4) followed by treatment of H_(2)SO_(4) yields following compound : Due to reduction of optically pure 'B'two isomeric product 'C' form. Isomeric product 'C' are :

An organic compound ‘A’ has molecular formula C_(9)H_(13)NO and it can be resolve into enantiomers. Adoes not decolourise bromine water solution. A on refluxing with dilute H_(2)SO_(4) , yields another revolvable compound B(C_(9)H_(14)O_(3)) which give effervescence with NaHCO_(3) . B on treatment with NaBH_(4) yields C(C_(9)H_(16)O_(3)) on heating with concentrated H_(2)SO_(4) yields ester D (C_(6)H_(14)O_(2)) . Compound A on reduction with LiAlH_(4) followed by treatment of H_(2)SO_(4) yields following compound : The sweet smelling neutral compound D is

Boron reacts with oxygen at 700^(@)C to give (A). Compound (A) reacts with carbon and dry chlorine to give (B) an carbon monoxide. (B) on reduction with LiAlH_(4) gives (C ) along with LiCl and AlCl_(3) . (C ) on reaction with ammonia at 200^(@)C gives (D). Compound (D) has B in ________ hybridised state

Boron reacts with oxygen at 700^(@)C to give (A). Compound (A) reacts with carbon and dry chlorine to give (B) an carbon monoxide. (B) on reduction with LiAlH_(4) gives (C ) along with LiCl and AlCl_(3) . (C ) on reaction with ammonia at 200^(@)C gives (D). In compound (B) :

AAKASH SERIES-POLYMERS-OBJECTIVE EXERCISE - 4
  1. Initiators that can be used in anionic polymerisation is/are (a) Pot...

    Text Solution

    |

  2. (A) Glyptal is a condensation homo polymer. (R) Glyptal is used to p...

    Text Solution

    |

  3. (A): Molecular mass of polymers is always expressed as an average. (...

    Text Solution

    |

  4. (A): F(2)C=CF(2), is the monomer of teflon. (R): Polytetrafluoroethy...

    Text Solution

    |

  5. (A): The chains of nylon-6, 6 are held by hydrogen bonding forces. (...

    Text Solution

    |

  6. (A) : Natural rubber and gutta percha are examples of cis-trans isomer...

    Text Solution

    |

  7. (A): Styrene is more reactive than propylene towards cationic polymeri...

    Text Solution

    |

  8. (A) Nylon-6 is obtained by polymerization of caprolactam. (R) Nylon-...

    Text Solution

    |

  9. (A) P.V.C is an addition copolymer (R) P.V.C is used to prepare hand...

    Text Solution

    |

  10. (A) Vulcanised rubber is stiff and has little tendency to absorb water...

    Text Solution

    |

  11. (A) Natural rubber is cis polyisoprene. (R) Isoprene is 2-methyl-1,3...

    Text Solution

    |

  12. (A) Thermosetting polymers are cross linked polymers. (R) Thermosett...

    Text Solution

    |

  13. (A) Natural rubber is an elastomer. (R) The intermolecular forces of...

    Text Solution

    |

  14. (A) Bakelite is prepared by copolymerisation of formaldehyde and pheno...

    Text Solution

    |

  15. (A) Cellulose is natural polymer. (R) Cellulose is obtained from pla...

    Text Solution

    |

  16. (A) Cellulose acetate is a semisynthetic polymer. (R) Natural polyme...

    Text Solution

    |

  17. (A) Poly vinyl chloride is a linear polymer. (R) Poly vinyl chloride...

    Text Solution

    |

  18. (A) L.D.P.E is a branched polymer. (R) L.D.P.E is inert tough and fl...

    Text Solution

    |

  19. (A) Bakelite is a cross linked polymer. (R) Bakelite is formed from...

    Text Solution

    |

  20. (A) Benzene does not undergo polymerisation. (R) Benzene loses aroma...

    Text Solution

    |

  21. (A) Ethylene can undergo polymerisation. (R) Ethylene contain a weak...

    Text Solution

    |