Answer:
See explanation
Explanation:
The fulminate ion, CNO − , is a pseudohalic ion because its charge and reactivity are similar to those of the halogens. Due to the instability of the ion, fulminate salts are friction-sensitive explosives. The best known is mercury(II) fulminate, which has been used as a primary explosive in detonators(Wikipedia).
The most important contributing structure is the one in which the formal charges on carbon, nitrogen and oxygen are; -1, +1, -1 as shown in the image attached to this answer.