Diamond is pure carbon, except for occasionally trace minerals that give it colour. Nitrogen is the most common element, giving gem-stone diamonds a yellow cast.
Pure substance; it is one form of pure carbon.
A diamond is mainly carbon in an sp4 crystalline configuration.
Diamond is formed from carbon with some inclusion of trace minerals, for colour.
Diamond is a substance (technically, in practice diamonds will have some amount of impurities, so technically they're mixtures, but we'll ignore that). The fact that it's in "chip form" doesn't make any difference.
It's a Mixture
Pure substance; it is one form of pure carbon.
Dissolve the mixture in water. Filter the mixture obtained. You will have diamond as your residue and aqueous iodine as your filtrate.
A diamond is mainly carbon in an sp4 crystalline configuration.
Element
Diamond is a particular elemental compound composed of carbon.
Diamond is a particular elemental compound composed of carbon.
Diamond is formed from carbon with some inclusion of trace minerals, for colour.
No, a diamond is a form of Carbon which is an element.
No, diamonds are pure diamond, not a mixture of anything.
Pure substance; it is one form of pure carbon.
It's a production of the element carbon, but it itself isn't an element. Some say its a mixture because other minerals other than carbon can influence a diamond's colour.
Crystals can be elements (as diamond) or compounds (as sapphire).