PDF chapter test TRY NOW
Write brief answers to the following questions:
1. Classify the substances given in figure into elements and compounds.
: Cu, Zn , F2, O2, Hg, Diamond
: CaCO3, H2O
2. Which of the following are not compounds?
(a). Chlorine gas
(b). Potassium chloride
(c). Iron
(d). Iron sulphide
(e). Aluminium
(f). Iodine
(g). Carbon
(h). Carbon monoxide
(i). Sulphur powder
(a). Chlorine gas
(b). Potassium chloride
(c). Iron
(d). Iron sulphide
(e). Aluminium
(f). Iodine
(g). Carbon
(h). Carbon monoxide
(i). Sulphur powder
, Iron, Aluminium, Iodine, Carbon, and are not compounds.
Register for free to see more content