Hydrogen Cyanide Bonding and Properties

The video tutorial explains how to write the chemical formula for hydrogen cyanide (HCN), also known as hydrocyanic acid when in water. It discusses the physical states of hydrogen cyanide, its purity, and how to balance ionic charges to derive the formula. The video also covers the Lewis structure and molecular geometry of HCN, highlighting the triple bond between carbon and nitrogen and the linear shape of the molecule.

What is another name for hydrogen cyanide when it is dissolved in water?

• Sulfuric acid

• Nitric acid

• Hydrocyanic acid

• Hydrochloric acid

At room temperature, hydrogen cyanide can exist in which of the following states?

• Solid

• Colloid

• Plasma

• Gas

What is the chemical formula for hydrogen cyanide?

• H2CN

• CHN

• HCN

• C2H2N

What is the charge of the cyanide ion in hydrogen cyanide?

• 0

• 2-

• 1+

• 1-

How do the charges of hydrogen and cyanide ions balance in hydrogen cyanide?

• Hydrogen is 1+ and cyanide is 1-

• Both are 1-

• Both are 1+

• Hydrogen is 2+ and cyanide is 2-

In the Lewis structure of hydrogen cyanide, what type of bond exists between carbon and nitrogen?

• Single bond

• No bond

• Double bond

• Triple bond

What is the molecular geometry of hydrogen cyanide?

• Bent

• Trigonal planar

• Linear

• Tetrahedral

Which of the following best describes the bond between hydrogen and carbon in hydrogen cyanide?

• Quadruple bond

• Single bond

• Double bond

• Ionic bond