In unsaturated hydrocarbons electrons favour___________________?

Related Mcqs:

1. Boiling points of hydrocarbons increase with the increase in number of carbon atoms. It is mainly due to_________________?

   A. More strength of H-bonding
   B. More strength of London forces
   C. Less polarizability
   D. All of the above

2. Which of the following is an unsaturated carboxylic acid___________________?

   A. malonic acid
   B. oxalic acid
   C. succinic acid
   D. maleic acid

3. Reactivity due to pi-electrons is present in_________________?

   A. alkane
   B. alkene
   C. alkyne
   D. both B & C

4. The mass of decimole of electrons (NA) is___________________?

   A. 1.008 mg
   B. 0.184 mg
   C. 0.054 mg
   D. 5.4 mg

5. What is maximum number of electrons in an orbital with m (magnetic quantum number) = 3 ?

   A. 6
   B. 4
   C. 3
   D. 2

6. The atomic number of an element having maximum number of unpaired electrons in p-subshell is_______________?

   A. 7
   B. 10
   C. 12
   D. 16

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. An atom loses or gains electrons to__________________?

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

9. How many electrons are there in benzene to form delocalized electron cloud________________?

   A. 3
   B. 4
   C. 6
   D. 8

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