All organic compounds contain the element
A: Phosphorus
B: Nitrogen
C: Sulfur
D: Carbon
E: Oxgen
A: Phosphorus
B: Nitrogen
C: Sulfur
D: Carbon
E: Oxgen
举一反三
- S-containing compounds are a group of naturally occurring chemical compounds that mostly contain basic nitrogen atoms.
- ( ) are organic compounds that are chemically based on carbon, hydrogen and other nonmetallic elements.
- （ ）is the most abundant chemical element in plants and animals. A: Oxygen B: Carbon C: Hydrogen D: Nitrogen
- The main air pollutants include : particulate matter, Ground-level ozone, Nitrogen dioxide, sulfur dioxide, carbon monoxide and lead.
- The most abundant element amongst the following as found in plants is A: Carbon B: Nitrogen C: Iron D: Manganese