Upto ___________________ C atoms alkanes are gases?

Related Mcqs:

1. Alkanes containing a methyl group on main chain at 2nd carbon are called________________?

   A. iso-alkane
   B. normal-alkane
   C. neo-alkane
   D. branched-alkane

2. Alkanes are also known as________________?

   A. saturated hydrocarbon
   B. unsaturated hydrocarbon
   C. paraffins
   D. both A & C

3. 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

4. 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

5. 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

6. Across short period the melting and boiling point increase upto __________________?

   A. IIIA group
   B. IVA group
   C. VA group
   D. VIA group

7. The melting points and boiling points upto meddle of 3d- series ____________________?

   A. increases
   B. decreases
   C. remain same
   D. no regular trend

8. The property which increases upto group IV-A then decreases on wards_______________?

   A. Ionization energy
   B. Atomic radii
   C. Melting & boiling points
   D. Atomic volume

9. In network of silica (SiO2) each silicon atom is surrounded by _____________ atoms of osygen?

   A. 4
   B. 2
   C. 1
   D. 6

10. 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