Home
Class 12
CHEMISTRY
An isobar of .(20)Ca^(40) is...

An isobar of `._(20)Ca^(40)` is

A

`""_(18)Ar^(40)`

B

`""_(20)Ca^(38)`

C

`""_(20)Ca^(42)`

D

`""_(18)Ar^(38)`

Text Solution

Verified by Experts

The correct Answer is:
A
Isobars have same atomic mass but different atomic number. Thus, the isobar of `""_(20)C^(40)` is `""_(18)Ar^(40)` .
Promotional Banner

Topper's Solved these Questions

  • MHTCET 2007

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise CHEMISTRY|50 Videos

  • MHTCET 2009

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise CHEMISTRY|50 Videos

Similar Questions

Explore conceptually related problems

An isobar of ""_(20)^(40)Ca is

Isobars

The calculated mass of ""_(20)Ca^(40) is 40.328 u. It releases 306.3 MeV energy in a nuclear process . Its isotopic mass is

Give examples of each of the following : (i) Isotope of ._(17)^(35)CI , (ii) Isobar of ._(18)^(40)Ar , (iii) Isotone of ._(7)^(15)N

Calculate the binding energy per nucleon of ._(20)Ca^(40) nucleus. Mass of (._(20)Ca^(40)) = 39.962591 am u .

Find the atomic structure of ._(20)^(40)Ca .

What is the minimum photon energy required to remove the least bound neutron of ._(20)^(40)Ca and ._(18)^(40)Ar . The nesessary atomic masses (in mu ) are given below: {:(M(.^(40)Ca)=39.962591 u),(M(.^(39)Ca)=38.970719 u),(M(.^(40)Ar)=39.962383 ),(M(.^(39)Ar)=38.964314 u),(" "m_n=1.008665 u):}

._(8)(O)^(16) and ._(8)(O)^(18) are isotpes while ._(20)(Ca)^(40) and ._(18)(Ca)^(40) are isobars.

Knowledge Check

  • An isobar of ""_(20)^(40)Ca is

    A
    `""_(18)^(40)Ar`
    B
    `""_(20)^(38)Ca`
    C
    `""_(20)^(42)Ca`
    D
    `""_(19)^(39)K`

  • The calculated mass of ""_(20)Ca^(40) is 40.328 u. It releases 306.3 MeV energy in a nuclear process . Its isotopic mass is

    A
    39.998
    B
    40.657
    C
    0.329
    D
    `2.85xx10^(4)`

  • If m_(p) is the mass of proton. m_(n) that of a neutron, M_(1) that of _(10)Ne^(20) nucleus and M_(2) that of _(20)Ca^(40) nucleus, then which of the following relations is//are not true?

    A
    `M_(2) gt 2M_(1)`
    B
    `M_(2) lt 20 (m_(p)+m_(n))`
    C
    `M_(2)=2M_(1)`
    D
    `M_(2) lt 2M_(1)`
    • MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-MHTCET 2008-CHEMISTRY
    1. An isobar of .(20)Ca^(40) is

      Text Solution

      |

    2. The point of dissimilarity between lanthanides and actinic is

      Text Solution

      |

    3. In the reaction, 2A+ dry silver oxide overset(Delta)to ether + 2AgX ...

      Text Solution

      |

    4. Glucose molecule reacts with X number of molecules of phenylhydrazine ...

      Text Solution

      |

    5. How many alpha and beta particles are emitted when uranium .(92)^(238)...

      Text Solution

      |

    6. When acetamide is treated with Br(2) and caustic soda, the paroduct fo...

      Text Solution

      |

    7. The final product of the following reaction is/are

      Text Solution

      |

    8. What is the general electronic configuration of transition elements

      Text Solution

      |

    9. Solution A, B, C and D are respectively 0.1 M glucose, 0.05 M NaCl, 0....

      Text Solution

      |

    10. Chloramine-R is a

      Text Solution

      |

    11. Cell reactiomn is spontaneous when

      Text Solution

      |

    12. If Delta E is the heat of reactin for C(2)H(5)OH(l)+3O(2)(g) to 2CO(...

      Text Solution

      |

    13. Which one of the following species acts as both Bronsted acid and base...

      Text Solution

      |

    14. For the reaction : H(2)+I(2)to 2HI, the differential rate law is

      Text Solution

      |

    15. Following reaction: (CH(3))(3)C-Br +H(2)O rarr (CH(3))(3)C-OH +HBr i...

      Text Solution

      |

    16. Calamine is

      Text Solution

      |

    17. End product of the following reaction is CH(3)CH(2)COOH overset(Cl(2...

      Text Solution

      |

    18. On heating benzyl amine with chloroform and ethanolic KOH, product obt...

      Text Solution

      |

    19. Which of the following compounds is not chiral?

      Text Solution

      |

    20. Which of the following ions is colourless in solution?

      Text Solution

      |