Properties and Bonding of PH3

The video tutorial explores whether PH3, phosphorus trihydride, is an ionic or covalent compound. It identifies phosphorus and hydrogen as non-metals, suggesting PH3 is a covalent compound. The video examines the electronegativity difference between phosphorus and hydrogen, which is minimal at 0.01, confirming PH3 as a non-polar covalent compound. Despite non-polar bonds, the molecule has a slight dipole. The video concludes with PH3 being a covalent compound.

What type of elements are phosphorus and hydrogen in PH3?

• Phosphorus is a non-metal, hydrogen is a metal

• Both are non-metals

• Both are metals

• Phosphorus is a metal, hydrogen is a non-metal

What is the significance of the electronegativity difference between phosphorus and hydrogen in PH3?

• It determines the color of the compound

• It changes the state of matter

• It affects the melting point

• It helps in identifying the type of bond

What is the electronegativity difference between phosphorus and hydrogen in PH3?

• 1.0

• 0.1

• 10.0

• 0.01

What type of bond is present in PH3 based on the electronegativity difference?

• Polar covalent

• Metallic

• Non-polar covalent

• Ionic

What is the overall molecular characteristic of PH3 despite its non-polar bonds?

• It is completely non-polar

• It is ionic

• It is highly polar

• It has a slight dipole

Which of the following best describes PH3?

• A polar compound

• A covalent compound

• A metallic compound

• An ionic compound

What is the common name for PH3?

• Phosphorus hydride

• Phosphine

• Phosphorus trioxide

• Phosphorus trihydride