Q:Information: - Nitrogen dioxide is the chemical compound with the formula . It is one of several nitrogen oxides. is an intermediate in the industrial synthesis of nitric acid, millions of tons of which are produced each year. At higher temperatures it is a reddish-brown gas that has a characteristic sharp, biting odor and is a prominent air pollutant. Nitrogen dioxide is a paramagnetic, bent molecule with C point group symmetry. - Nitryl fluoride , NO2F , is a colourless gas and strong oxidizing agent , which is used as a fluorinating agent and has been proposed as an oxidiser in rocket propellants ( though never flown ) . It is a molecular species , not ionic , consistent with its low boiling point . The structure features planar nitrogen with a short N - F bond length of 135 pm . - Nitryl is the nitrogen dioxide (NO) moiety when it occurs in a larger compound. Examples include nitryl fluoride (NOF) and nitryl chloride (NOCl). After reading the paragraphs above, we are interested in knowing the entity with which 'nitryl fluoride' exhibits the relationship of 'instance of'. Find the answer from the choices below. Choices: - chemical - chemical compound - chloride - fluoride - formula - molecule - rocket - species
A:
chemical compound