Material Science and Technology Set 2

Without any change in the weight of the nail ✘ With decrease in the weight of the nail ✘ With increase in the weight of the nail ✘ Without any change in colour or weight of the nail ✔

Lead ✘ Chromium ✘ Zinc ✘ Tin ✔

Phosphorous ✘ Bromine ✘ Chlorine ✘ Helium ✔

Tin ✘ Mercury ✘ Lead ✘ Zinc ✔

Nitrogen ✘ Hydrogen ✘ Carbon dioxide ✘ Oxygen ✔

Methane ✘ Nitrous oxide ✘ Carbon dioxide ✘ Hydrogen ✔

Gold ✘ Iron ✘ Diamond ✘ Platinum ✔

Graphite ✘ Silica ✘ Iron Oxide ✘ Diamond ✔

Germanium ✘ Carbon ✘ Silicon ✘ Sulphur ✔

Nitrogen ✘ Ethane ✘ Methane ✘ Hydrogen ✔