Question

____ is an example of an organic compound.
○ sulfuric acid
○ hydrogen chloride
○ water
○ sugar

1. choose all that apply.

choose two facts about organic compounds.
□ organic compounds are often associated with life.
□ organic compounds contain the element carbon.
□ organic compounds cannot include metalloids.
□ organic compounds are rare on the earth.

Explanation:

First Question (Single - choice)

Organic compounds are compounds that contain carbon (except for some simple carbon - containing compounds like carbonates, cyanides, etc. which are considered inorganic). Sulfuric acid ($H_2SO_4$) has no carbon, hydrogen chloride ($HCl$) has no carbon, and water ($H_2O$) has no carbon. Sugar (e.g., glucose $C_6H_{12}O_6$) contains carbon and is an organic compound.

1. Organic compounds are often associated with life: Living organisms are made up of organic compounds like proteins, carbohydrates, lipids, etc. So this statement is correct.
2. Organic compounds contain the element carbon: By definition, organic compounds are carbon - based compounds (with some exceptions, but the presence of carbon is a key characteristic). So this statement is correct.
3. Organic compounds cannot include metalloids: Some organic compounds can contain metalloids. For example, some organometallic compounds can have metalloids. So this statement is incorrect.
4. Organic compounds are rare on the earth: Organic compounds are very common on Earth, especially in living systems and in many natural and synthetic materials. So this statement is incorrect.

Answer:

D. Sugar

Second Question (Multiple - choice)