Covalent Compounds Polar

Which of the following molecules is the most polar?

• H − Cl

• H − Br

• H − I

• H − F

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following molecules is the least polar?

• H − N

• H − Si

• H − O

• H − C

Which of the following compounds is the most ionic?

• KF

• HF

• LiF4

• CF4

Tags

NGSS.HS-PS2-4

Which of the following compounds is the least ionic?

• KF

• HF

• LiF4

• CF4

Tags

NGSS.HS-PS1-3

Which of the following correctly lists the molecule and its type of bond?

• CaO

  Ionic bond

• Br2

  Polar covalent bond

• CH4

  Polar covalent bond

• NaI

  Coordinate covalent bond

Tags

NGSS.HS-PS1-1

Which of the following correctly lists the molecule and its type of bond?

• MgCl2

  Coordinate covalent bond

• H2O

  Polar covalent bond

• SiCl4

  Polar covalent bond

• KBr

  Coordinate covalent bond

Which of the following is/are generally true about polar covalent bond?

I. Occurs between a metal atom and a non-metal atom

II. Has unequal attraction of the electron pair between the bonded atoms

III. One of the bonded atoms has a positive charge and the other has a negative charge

• I only

• II only

• I and III only

• I, II and III

Tags

NGSS.HS-PS1-1

Which of the following is not true about non-polar covalent bond?

I. Unequal distribution of electrons

II. Equal attraction of electrons between two atoms

III. Partial negative charges are close to the less electronegative atom

• I only

• II only

• I and III only

• I, II and III

Arrange the following bonds according to decreasing polarity.

I. Cl−H

II. O−H

III. S−H

• I > II > III

• II > I > III

• III > I > II

• III > II > 1

Tags

NGSS.HS-PS1-1

Which of the following is/are true about diatomic molecules?

I. donation of electrons from one atom to another

II. unequal distribution of electrons between the two atoms

III. electron pairs are shared equally between the two atoms

• I only

• II only

• II and III only

• III only