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3. What is the molecular shape of CHBr3?
a. Linear
b. Trigonal planar
c. Trigonal bipyramidal
d. Tetrahedral
4. A nonpolar covalent bond would form in which of the following pairs of atoms?
a. Na-ci
b. Ca-o
c. P-N
d. C-S
5. From the given Lewis structure of NH3, how many nonbonding pair/s of electron
are around the central atom?
H-N-H
a. O
b. 1
H
c. 2
d. 3
6. Which of the following statements is INCORRECT?
a. Polar covalent bonds can be present in a nonpolar molecule.
b. Polar covalent bond is present if the electronegativity difference between
atoms is equal or less than 0.4.
c. Polarity of bond and molecular geometry are the two factors that affect t
polarity of molecules.
d. Polar bond forms when electrons are unequally shared by two atoms in
compound
7. What do you call the relative ability of a bonded atom to attract shared electro
pairs?
a. Electron affinity
b. Electronegativity​