Home
Class 12
CHEMISTRY
Liquid benzene C(6)H(6)) burns in oxygen...

Liquid benzene `C_(6)H_(6))` burns in oxygen according to the equation, `2C_(6)H_(6)(l)+15O_(2)(g)to12CO_(2)(g)+6H_(2)O(g)`
How many litres of `O_(2)` at STP are needed to complete the combustion of 39 g of liquid benzene ? (Mol . Weight if `O_(2)=32,C_(6)H_(6)=78)`

A

74 L

B

11.2 L

C

22. 4 L

D

84 L

Text Solution

Verified by Experts

The correct Answer is:
D
`underset(=156)underset(2xx78)(2C_(6)H_(6))+underset(=330)underset(15xx32)(15O_(2)(g))to12CO_(2)(g)+6H_(2)O(g)`
`:'` 156 g of benzeme required oxygen `=15xx2.4 L`
`:.` 1 g of benzen required oxygen `=(15xx22. 4 )/(156)L`
`:.` 39 g of benzene required oxygen
`=(15xx22.4xx39)/(156)`
`=84.0 L`
Promotional Banner

Topper's Solved these Questions

  • SOLUTIONS

    NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)|Exercise Exercise|56 Videos

  • STATES OF MATTER

    NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)|Exercise All Questions|77 Videos

Similar Questions

Explore conceptually related problems

Liquid benzene (C_6H_6) burns in oxygen according to 2C_6H_6(1)+15O_2(g)rarr12CO_2(g)+6H_2O_(g) How many litres of O_2 at STP are needed for complete conbustion of39 gm of liquid benzene?

How many litres of oxygen at STP are required for complete combustion of 39 gms of liquid Benzene? (Atomic weights C = 12, H = 1, O = 16)

For the reaction , 2C_(2)H_(6)(g)+7O_(2)(g)rarr4CO_(2)(g)+6H_(2)O(l) , the rate of disappearnce of C_(2)H_(6)(g) :

Consider the reaction, C_(6)H_(12)O_(6)(g)+6O_(2)(g) to 6CO_(2)(g) +6H_(2)O(l) , which of the following expressions is /are correct?

Benzene burns according to the following equation at 300K (R=8.314J mol e^(-1)K^(-1)) 2C_(6)H_(6)(l)+15O_(2)(g)rarr12CO_(2)(g)+6H_(2)O(l) " "DeltaH^(@)=-6542kJ //mol What is the DeltaE^(@) for the combustion of 1.5 mol of benzene

NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-SOME BASIC PRINCIPLES OF CHEMISTRY-Exercise
  1. The number of atoms in 4.25 g NH(3) is approximately:

    Text Solution

    |

  2. In the reaction, 4NH(3)(g)+5O(2)(g) rarr 4NO(g)+6H(2)O(g), when 1 mole...

    Text Solution

    |

  3. Haemoglobin contains 0.33% of iron by weight. The molecular weight of ...

    Text Solution

    |

  4. Given the number: 161 cm, 0.161 cm, 0.0161 cm. The number of significa...

    Text Solution

    |

  5. If 0.24 g of a volatile liquid upon vaporization gives 45 ml of vapors...

    Text Solution

    |

  6. Liquid benzene C(6)H(6)) burns in oxygen according to the equation, 2...

    Text Solution

    |

  7. The number of moles of oxygen in 1 L of air containing 21% oxygen by v...

    Text Solution

    |

  8. The percentage weight of Zn in white vitriol [ZnSO(4)*7H(2)O] is appro...

    Text Solution

    |

  9. If N(A) is Avogadro's number then number of valence electrons in 4.2 g...

    Text Solution

    |

  10. In the final answer of the expression ((29.2-20.2)(1.79xx10^(5)))/1.37...

    Text Solution

    |

  11. The number of gram molecules of oxygen in 6.02 xx 10^(24) CO molecules...

    Text Solution

    |

  12. The number of oxygen atoms in 4.4 of CO(2) is

    Text Solution

    |

  13. Boron has two stable isotopes, .^(10)B(19%) and .^(11)B(81%). The atom...

    Text Solution

    |

  14. If 1L of O(2) at 15^(@)C and 750 mm pressure contains N molecules, the...

    Text Solution

    |

  15. Ratio of C(p) and C(v) of a gas X is 1.4, the number of atom of the ga...

    Text Solution

    |

  16. A metal oxide has the formula Z(2)O(3) . It can be reduced by hydrogen...

    Text Solution

    |

  17. What is the weight of oxygen required for the complete combustion of 2...

    Text Solution

    |

  18. One litre hard water contains 12.00 mg Mg^(2+) millieqivalent of washi...

    Text Solution

    |

  19. I cc N(2)O at NTP contains

    Text Solution

    |

  20. At STP , the density of C Cl(4) vapour in g/L will be nearest to

    Text Solution

    |