The number of atoms in a molecule determines________________?

Related Mcqs:

1. When the atoms of third layer are arranged in such a way that they directly lie above the atoms of first layer then this arrangement is called_________________?

   A. ABAB (hexagonal)
   B. ABCABC (Cubic)
   C. Orthor hombic
   D. Rhombohedral

2. Halides in which halogen atoms act as a bridge between two atoms of the other element are called___________________?

   A. Covalent halides
   B. Electronegative halides
   C. Polymeric halides
   D. Polymeric hydrides

3. Compound containing two halogen atoms on two adjacent carbon atoms are called as ___________?

   A. Glycols
   B. Vicinal dihalides
   C. Geminal dihalides
   D. Diols

   Submitted by: Aamir khan Hullio

4. In a molecule of carbon monoxide, what are the formal charges on the two atoms?

   A. Carbon=0, Oxygen=0
   B. Carbon= +1, Oxygen= -1
   C. Carbon= -1, Oxygen= +1
   D. Carbon=0, Oxygen= -1

   Submitted by: Muhammad Ali Kunbhar

5. The ttractive forces between the partial positive end of one molecule and partial negative end of other molecule are called________________?

   A. Dipole-dipole forces
   B. Ion dipole-dipole forces
   C. London dispersion forces
   D. Debye forces

6. Which molecule has the highest bond energy among the halogens_________________?

   A. Fluorine
   B. Chlorine
   C. Iodine
   D. Bromine

7. 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

8. The atoms of same element having same atomic number but different mass number are called____________________?

   A. Isobars
   B. Isomers
   C. Isotopes
   D. Isotropes

9. The number of atoms present in 21.6 gram of silver (atomic weight = 108) are same as the molecules in__________?

   A. 1.8 gram of H₂O
   B. 12 moles of KMnO₄
   C. 0.6N H₂SO₄
   D. 4.6 gram of C₂H₅OH

   Submitted by: Muhammad Ali Kunbhar

10. Atoms of all the elements always contain in nucleus:

    A. Proton and neutron
    B. Neutron and electron
    C. Proton
    D. Neutron

    Submitted by: Shumail Bashir