A. Reduce it
B. Oxidize it
C. Obtain an alloy
D. Separate volatile impurities
A. saturated solution
B. solubility
C. unsaturated solution
D. super saturated solution
A. NH2Cl
B. NHCI2
C. NCI2
D. all of the above
A. MnO2
B. Zn
C. AgO2
D. cadmium
A. it combines with H2O to form carbonic acid
B. it reacts with red blood cells of haemoglobin
C. it is powerful oxidizing agent
D. it is used to prepare aerated drinks
A. J.J Thomson
B. Millikan
C. Rutherford
D. Perrin
A. s-1
B. mol dm-3 s-1
C. mol-1 dm3 s-1
D. mol-2 dm6 s-1