The Elements of Group 5A,the Nitrogen Family,form Compounds with Hydrogen

question 40

Multiple Choice

The elements of group 5A,the nitrogen family,form compounds with hydrogen having the boiling points listed below:

SbH₃ -17°C,AsH₃ -55°C,PH₃ -87°C,NH₃ -33°C.

The first three compounds illustrate a trend where the boiling point decreases as the mass decreases; however,ammonia (NH₃) does not follow the trend because of ___.

• A) dipole-dipole attraction
• B) metallic bonding
• C) hydrogen bonding
• D) London dispersion forces
• E) ionic bonding

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Definitions:

Carbon Cycle

The series of processes by which carbon compounds are interconverted in the environment, incorporating the absorption of carbon dioxide by plants and its release back into the atmosphere through respiration, the burning of fossil fuels, and other activities.

Aerobic Respiration

A process of producing cellular energy involving oxygen.

Aquatic Systems

Environments composed of water, including oceans, lakes, rivers, and wetlands, supporting diverse life forms.

Primary Productivity

The rate at which plants and other photosynthetic organisms produce organic compounds in an ecosystem from carbon dioxide and water using sunlight.