Home
Class 12
CHEMISTRY
A polystryrene, having formula Br(3) C(6...

A polystryrene, having formula `Br_(3) C_(6) H_(2) (C_(8) H_(8))_(n)`, was perpared heating styrene with tribromobenzoyl peroxide in the absence of air. If it was found to contain 10.46% bromine by weight, find the value of `n`.

A

19

B

20

C

15

D

10

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • SOME BASIC CONCEPTS OF CHEMISTRY

    VMC MODULES ENGLISH|Exercise IN - CHAPTER EXERCISE - D|28 Videos
  • SOME BASIC CONCEPTS OF CHEMISTRY

    VMC MODULES ENGLISH|Exercise IN - CHAPTER EXERCISE - E|28 Videos
  • SOME BASIC CONCEPTS OF CHEMISTRY

    VMC MODULES ENGLISH|Exercise IN - CHAPTER EXERCISE - B|9 Videos
  • SOME BASIC CONCEPT OF CHEMISTRY

    VMC MODULES ENGLISH|Exercise IMPECCABLE|49 Videos
  • STATES OF MATTER

    VMC MODULES ENGLISH|Exercise IMPECCABLE|50 Videos

Similar Questions

Explore conceptually related problems

The compound having the molecular formula C_(3)H_(9)N can represent

An optically active compound A (assume dextrorotatory) has the molecular formula C_(7)H_(11)Br . A reacts with hydrogen bromide, in the absence of peroxides to yield isomeric products, B and C, with the molecular formula C_(7)H_(12)Br_(2) . Compound B is optically active, C is not. Treating B with 1 mol of potassium butoxide yields (+)-A . Treating C with 1 mol of potassium tert-butoxide yields (+-)-A . Treating A with potassium tert-butoxide yields D(C_(7)H_(10)) . Subjecting 1 mol of D to ozonolysis followed by treatement with zinc and acetic acid yields 2 moles of formaldehyde and 1 mole of 1,3-cyclopentanedione. The optically active compound 'A' is

An optically active compound A (assume dextrorotatory) has the molecular formula C_(7)H_(11)Br . A reacts with hydrogen bromide, in the absence of peroxides to yield isomeric products, B and C, with the molecular formula C_(7)H_(12)Br_(2) . Compound B is optically active, C is not. Treating B with 1 mol of potassium butoxide yields (+)-A . Treating C with 1 mol of potassium tert-butoxide yields (+-)-A . Treating A with potassium tert-butoxide yields D(C_(7)H_(10)) . Subjecting 1 mol of D to ozonolysis followed by treatement with zinc and acetic acid yields 2 moles of formaldehyde and 1 mole of 1,3-cyclopentanedione. The compound 'B' is:

An aromatic compound 'A' having molecular formula C_(7)H_(6)O_(2) on treating with aqueous ammonia and heating forms compound 'B'. The compound 'B' on reaction with molecular bromine and potassium hydroxide provides compound 'C' having molecular formula C_(6)H_(7)N . The structure of 'A' is

A compound on analysis was found to contain C = 34.6 %, H = 3.85 % and O = 61.55% .Calculate its empirical formula.

Find compound with formula C_(4)H_(8)Br_(2) How many structure of (X) are possible?

Two isomeric compounds A and B have some molecualr formula C_(3)H_(5)N . It was found that

The degree of unsaturation of following compound C_(8)H_(12)O, C_(3)H_(5)N, C_(4)H_(8)O are respectively :

Give the structures of (A),(B) and (C)( explanation is not required ). i. (A)(C_(4)H_(8)) that adds on HBr in the presence and in the absence of peroxide to give the same product, C_(4)H_(9)Br . ii. (B)(C_(4)H_(8)), which when treated with H_(2)O //H_(2)SO_(4) gives C_(4)H_(10)O that cannot be resolves into optical isomers. iii. (C)(C_(6)H_(12), an optically active hydrocarbon which on catalytic hydrogenation gives an optically inactive compound, C_(6)H_(14))

If .^(n)C_(8)=.^(n)C_(6) , then find .^(n)C_(2) .

VMC MODULES ENGLISH-SOME BASIC CONCEPTS OF CHEMISTRY-IN - CHAPTER EXERCISE - C
  1. The carbonate of a metal is isomorphous with MgCO(3) and contains 10.3...

    Text Solution

    |

  2. A gaseous alkane is exploded with O2. The volume of O2 required for ...

    Text Solution

    |

  3. A polystryrene, having formula Br(3) C(6) H(2) (C(8) H(8))(n), was per...

    Text Solution

    |

  4. The simplest formula of a compound containing 50% of an element X (ato...

    Text Solution

    |

  5. How many molecules of water are present as water of crystallisation in...

    Text Solution

    |

  6. The volume in litres of CO(2) liberated at STP when 10 grams of 90% pu...

    Text Solution

    |

  7. In the reaction 4A + 2B + 3C to A4B2C3, the number of moles of product...

    Text Solution

    |

  8. The mass of sodium hydroxide produced when "175.5 g of NaCl" reacts wi...

    Text Solution

    |

  9. 30g Mg and 30g O(2) are reacted and the residual mixture contains:

    Text Solution

    |

  10. Calculate the mass of lime (CaO) obtained by heating 200kg of 95% pure...

    Text Solution

    |

  11. A silver coin weighing 11.34 g was dissolved in nitric acid When sodiu...

    Text Solution

    |

  12. Consider the following reaction sequence: S(8)(s) + 8O(2)(g) to 8SO(...

    Text Solution

    |

  13. 4Fe+3O(2) rarr 2Fe(2)O(3) (reference to iron )

    Text Solution

    |

  14. 30 ml of a mixture of oxygen (O(2)) and ozone (O(3)) was heated till o...

    Text Solution

    |

  15. Polythene can be produced from calcium carbide according to the follow...

    Text Solution

    |

  16. The density of liquid ethanol is 0.7892 g/ml at 20^@ C. If 1.2 mol of ...

    Text Solution

    |

  17. 200 ml of an aqueous solution of glucose (C(6)H(12)O(6)) has molarity ...

    Text Solution

    |

  18. The normality of HCl solution with a density of 1.19gm/ml containing 3...

    Text Solution

    |

  19. 10L of hard water required 5.6g of lime for removing hardness. Hence t...

    Text Solution

    |

  20. Permanent hardness is due to CI^(ɵ) and SO4^(2-) of Mg^(2+) and Ca^(2+...

    Text Solution

    |