Energy released or absorbed when electrons are added in atom is_________________?

Related Mcqs:

1. An atom loses or gains electrons to__________________?

   A. Gain stability
   B. Form a bond
   C. Complete its outermost shell
   D. all are accurate justifications

2. The specie which donates electrons to central metal atom in coordination sphere is called____________________?

   A. anion
   B. cation
   C. Ligand is positively charged
   D. acid

3. The oxidation number of central metal atom in [Ni(CO)4] is_________________?

   A. 0
   B. 2
   C. 4
   D. 6

4. Removal of halogen and hydrogen atom is_________________?

   A. halogenation
   B. dehalogenation
   C. dehydrohalogenation
   D. hydrohalogenation

5. When an atom absorbs energy the lines in the spectrum will appear which are_________________?

   A. Brighter
   B. Darker
   C. Colourless
   D. Hard to locate

6. A specie with maximum number of unpaired electrons ?

   A. F
   B. H2O
   C. HF
   D. NH-2

7. The relative attraction of the nucleus for the electrons in a chemical bond is called _________________?

   A. Ionization energy
   B. Electron affinity
   C. Electro negativity
   D. None of the above

8. Which one has maximum number of unpaired electrons ?

   A. 6X
   B. 7Y
   C. 9Z
   D. 13W

9. The amount of heat absorbed when one mole of a liquid is changed into gas at its boiling point is_____________________?

   A. Molar heat of sublimation
   B. Molar heat of fusion
   C. Molar heat of vapourization
   D. Latent heat of that liquid

10. The number of d-electrons in Fe2+ (Z = 26) is not equal to that of____________?

    A. p-electrons in Ne(Z = 10)
    B. s-electrons in Mg(Z = 12)
    C. d-electrons in Fe(Z = 26)
    D. p-electrons in CI(Z = 17)

    Submitted by: Muhammad Ali Kunbhar