Which Substance Is Used to Kill Weeds

question 72

Multiple Choice

Which substance is used to kill weeds? 

• A) fungicide 
• B) herbicide 
• C) insecticide 
• D) rodenticide

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Definitions:

1,3-Dichlorobenzene

An organic compound that consists of a benzene ring with two chlorine atoms attached at the 1st and 3rd positions.

Proton Spin Decoupled

This term relates to a nuclear magnetic resonance (NMR) spectroscopy technique where the interactions between proton spins are removed to simplify the spectrum.

1,4-Dibromobenzene

An organic compound where two bromine atoms are bonded to a benzene ring, positioned opposite from each other.

Proton Spin Decoupled

A nuclear magnetic resonance (NMR) spectroscopy technique where the interaction between proton spins is removed to simplify the spectrum.