Cyanide Ion Properties and Behavior

The video explores whether the cyanide ion (CN-) is polar or nonpolar. It begins by discussing the ion's negative charge and its Lewis structure, highlighting the presence of a triple bond and lone pairs. The video then examines the electronegativity difference between carbon and nitrogen, concluding that CN- is slightly polar. A molecular model is used to visualize the polarity, showing that the nitrogen side is more negative. The video concludes by explaining how CN- interacts with polar solvents like water due to its charge and slight polarity.

What is the charge of the cyanide ion?

• Neutral

• Negative

• Variable

• Positive

What type of bond is present in the Lewis structure of the cyanide ion?

• Single bond

• No bond

• Triple bond

• Double bond

What is the electronegativity difference between carbon and nitrogen in the cyanide ion?

• 3.04

• 0.51

• 2.55

• 1.49

Which element in the cyanide ion is more electronegative?

• Nitrogen

• Neither

• Carbon

• Both are equal

What color represents a slightly polar region in the molecular model of the cyanide ion?

• Red

• Green

• Blue

• Yellow

Which side of the cyanide ion is slightly more negative?

• Both sides equally

• Neither side

• Nitrogen side

• Carbon side

How does the cyanide ion interact with polar solvents like water?

• It interacts due to its negative charge

• It dissolves without interaction

• It remains unaffected

• It repels them

What is the overall polarity of the cyanide ion?

• Nonpolar

• Highly polar

• Neutral

• Slightly polar

What happens to the extra electron in the cyanide ion?

• It is localized on nitrogen

• It is localized on carbon

• It is lost to the environment

• It is spread over the whole ion

Why is the cyanide ion considered polar?

• Due to its color

• Due to its size

• Due to the electronegativity difference

• Due to its shape