Home
Class 11
CHEMISTRY
Assertion (A) : The first ionization ene...

Assertion (A) : The first ionization energy of Al is lower than Mg.
Reason (R ) : Atomic radius of Al is smaller than Mg.

A

Both (A) and (R) are true and R is correct explanation of R

B

Both (A) and (R ) are true but R is not the correct explanation of A

C

(A) is true R is false

D

Both (A) and (R ) are false .

Text Solution

Verified by Experts

The correct Answer is:
b
Promotional Banner

Topper's Solved these Questions

  • PERIODIC CLASSIFICATION OF ELEMENTS

    SURA PUBLICATION|Exercise ADDITIONAL SHORT ANSWERS|58 Videos
  • PERIODIC CLASSIFICATION OF ELEMENTS

    SURA PUBLICATION|Exercise ADDITIONAL LONG ANSWERS|12 Videos
  • PERIODIC CLASSIFICATION OF ELEMENTS

    SURA PUBLICATION|Exercise II. WRITE BRIEF ANSWER TO THE FOLLOWING QUESTIONS.|27 Videos
  • HYDROGEN

    SURA PUBLICATION|Exercise NUMERICAL PROBLEM|2 Videos
  • PHYSICAL AND CHEMICAL EQUILIBRIUM

    SURA PUBLICATION|Exercise Creative questions (HOTS)|11 Videos

Similar Questions

Explore conceptually related problems

Ionization energy of Mg is greater than that of Al. Why?

The first ionization enthalpy of Na, Mg, Al and Si are in order.

Assertion : Ionization energy increase does the group. Reason : Atomic size increases down the group.

Why the first ionization energy of alkaline earth metals higher than that of Ist group.

The first ionization potentials of Na,Al,Mg and Si are in sequence

SURA PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS-ADDITIONAL CHOOSE THE CORRECT ANSWER
  1. Correct order of 1st ionization potential among elements Be,B,C,N,O is

    Text Solution

    |

  2. The most electronegative element of the periodic table is

    Text Solution

    |

  3. Assertion (A) : The first ionization energy of Al is lower than Mg. ...

    Text Solution

    |

  4. Ionic radii are

    Text Solution

    |

  5. Which of the following sets contain only isoelectionic ions?

    Text Solution

    |

  6. With repect to chlorine ,hydrogen will be

    Text Solution

    |

  7. Which orbital diagram gives an insight to the highest ionization ene...

    Text Solution

    |

  8. Among the elements given below has the highest value of electronegativ...

    Text Solution

    |

  9. Pick the incorrect statement about the factors affecting ionization en...

    Text Solution

    |

  10. Statements I : Noble gases have zero electron gain enthlpy. Statem...

    Text Solution

    |

  11. The relative tendency of a bonded atom in a molecule to attract the sh...

    Text Solution

    |

  12. Which of the following property has no unit ?

    Text Solution

    |

  13. In a group with decrease in electronegativity the metallic character ...

    Text Solution

    |

  14. Which of the following processes involves absorption of energy?

    Text Solution

    |

  15. Which set of elements shows positive electron gain enthapy?

    Text Solution

    |

  16. Char Coal is a element.

    Text Solution

    |

  17. Odd one out the following among elements in the triad.

    Text Solution

    |

  18. Which was the first reasonable attempt towards the creation of periodi...

    Text Solution

    |

  19. Which las holds good for lighter elements up to calcium?

    Text Solution

    |

  20. The repetition of physical and chemical properties at regular interval...

    Text Solution

    |