Classification of Elements and Periodicity in Properties questions

826 published questions with worked solutions.

• Which of the following property does not correspond to the order HI < HBr < HCl < HF ? [MHTCET 2011]
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• The electronic configuration of four elements are given below. Which element does not belong to the same family as others?
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• The general electronic configuration of 3d series is
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• The element with the electronic configuration [ Xe ] ,4f^ 14 5d^ 2 6s^ 2 belongs to
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• An atom has electronic configuration 1s^2 ,2s^2 ,2p^6 ,3s^2 ,3p^6 ,3d^3 ,4s^2. In which group would it be placed?
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• Zn^ +2 ion is isoelectronic with
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• The outer electronic configuration of Ag is 4d^ 10 5s^ 1 , it belongs to
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• Valence shell of transition elements consist of
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• Which of the following is correct configuration of iron?
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• Correct ground state electronic configuration of Cr (At. no. = 24) is
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• The number of unpaired electrons in Ni^ +2 ion is
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• Which one of the following is the correct configuration for Fe^ +3 ion? (At. no. Fe=26)
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• The no. of. d- electrons retained in Fe^ +2 ion (At. no. Fe=26) is
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• Which one of the following pairs of ions have the same electronic configuration
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• Which of the following transition metal ion has maximum unpaired electrons? (At. no. Mn=25, Fe=26, Ni=28,Cu=29)
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• The atomic radii of transition elements in a row are
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• The correct order of ionic radii of Y^ 3+ , La^ 3+ , Eu^ 3+ and Lu^ 3+ is
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• Out of Fe^ 2+ , Fe^ 3+ , Mn^ 2+ and Ti^ 2+ the least size is of
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• Maximum radius will be of _______ ions.
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• The atomic radius of Zn is _______ than that of Cu
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties

Other chapters

Practise these in a timed test