Polarity of Molecules

1. What do you call the ability of a bonded atom to attract a shared electron pair?

• Electron Affinity

• Electronegativity

• Ionization energy

• Electromotive force.

2. Which of the following is an electropositive element?

• Helium

• Argon

• Cesium

• Boron

3. Which of the following elements is not an electronegative element?

• Silicon

•  Selenium

• Barium

•  Krypton

4. What type of chemical bond holds the atom of a table salt molecule (NaCl)?

• Ionic

• Hydrogen

• Polar Covalent

• Nonpolar Covalent

5. Lisa had prepared X-molecule inside YG laboratory. X molecule has an electronegative difference of 0.327, what is the type of chemical bond present on X molecule?

•  Ionic

• Hydrogen

• Polar Covalent

• Nonpolar Covalent

6. What is the Electronegative difference of Sodium and Iodine?

• 1.5

• 1.6

• 1.7

• 1.8

7. What is the Electronegative difference of two oxygen atoms?

• o

• 1

• 1.25

• 1.5

8. What is the Electronegative difference of the compound Selenium Hydride (SeH)?

• 0.1

• 0.2

• 0.3

• 0.4

9. Which of the following is the correct molecular shape of a Carbon tetrachloride?

• Trigonal pyramidal

• Trigonal planar

• T-shaped

• Tetrahedral

10. Why is water has a bent molecular geometry instead of a linear one?

• Due to the attraction of 2 lone pairs of Oxygen

• Due to the repulsion force of 2 lone pairs of Oxygen

• Due to the attraction of 2 Hydrogen bonds

• Due to the repulsion force of 2 Hydrogen bonds