Hydrogen in molecular form,H₂,is thought to be very abundant in gas clouds in space,but these molecules emit radiation relatively inefficiently since they are symmetrical.Which other molecule occurs in close association with H₂ and is used as a probe for molecular clouds?

Question

Quizplus · Accepted Answer

Carbon monoxide (CO) occurs in close association with H₂ in molecular clouds and is often used as a probe to study the distribution and structure of these clouds. CO also emits radiation more efficiently than H₂, making it easier to detect and study.

Hydrogen in Molecular Form,H₂,is Thought to Be Very Abundant in Gas