C, The compound may or may not be poisonous, depending on the chemical properties of the new substance.
The elements combine chemically to produce a compound. When two poisonous elements react, they form a compound that may or may not be poisonous based on its chemical properties. Thus, option B is correct.
Chemical changes are defined by the formation of a new substance when the bonds are broken or created between the atoms of the reactants. The products formed cannot be reversed back into reactants.
The chemical and the physical property of the new substance produced differs from its reactant species. It happens due to chemical rearrangement that alters the composition.
The new compound after two elements combines chemically may or may not have poisonous nature as it may have different chemical properties than the older species.
Therefore, option B. the new substance may or may not be poisonous chemical properties.
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