CO and `CO_2` can be considered, as an example for law of multiple proportion. Illustrate the same law by using the oxides of a metal containing 78.7% and 64.5% of the metal.

How can you illustrate the law of multiple proportions by using oxides of metals containing 78.7% and 64.5% of the metal?

The laws of chemical combination are the basis of the atomic theory. Name the law of chemical combination illustrated by the pair of compounds, CO and CO_2

The laws of chemical combination are the basis of the atomic theory. Name the law of chemical combination illustrated by the pair of compounds, CO and CO_2 .

A compound contains 28% of nitrogen and 72% of a metal by weight. 3 atoms of the metal combine with 2 atoms of nitrogen. Find the atomic weight of the metal. (N = 14)

6.488 g of lead combines directly with 1.002g of oxygen to form lead peroxide. Lead peroxide also can be prepared by heating lead nitrate. It was found that the percentage of oxygen present in lead peroxide prepared by the second experiment is 13.38. Use this data to illustrate the law of definite proportions.

Consider the following metallurgical processes in 1. Heating impure metal with CO and distilling the resulting volatile carbonyl boiling point 43^@C and finally decomposing at 150^@ to 200^@C to get the pure metal. II. Heating the sulphide ore in air until a part is converted to oxide and then further heating in the absence of air to let the oxide react with unchanged sulphide. III. Electrolysing the molten electrolyte containing approximately equal amounts of the metal chloride and CaCl_2 to obtain the metal. The processes used for obtaining sodium, nickel and copper are respectively

Thé total pressure of a mixture of O_2 and CO_2^ , in a container is given by the formúla, P_(Total)=P_(O_2)+P_(C O_2) a. Which law is used here? State the law. b. Can the total pressure of a mixture of 'NH_3(g) and HCl(g) taken in a container be determined using the formula. P_(Total) =P_NH_3+P_HCl . Why?

F centre is an example of metal excess defect due to the presence of extra cations at interstitial sites. Zinc oxide is white in colour at room temperature, on heating it loses oxygen and turns yellow. ZnO overset("Heat")toZn^(2+)+(1)/(2)O_(2)+2e^(-) Now there is excess of zinc in the crystal and its formula becomes Zn_(1+x) O. the excess of Zn^(2+) ions move to interstitial sites and the electrons to neighbouring interstitial sites. There are many solids which are difficult to prepare in the stiochiometric composition and contain less amount of the metal as compared to stiochiometric proportion. a typical example of this type is FeO which is mostly found with a composition of Fe_(0.95) . it may actually range from Fe_(0.96) O. Q. In Fe_(0.95) O:

Which of the following statements are true? i) Elements which are least reactive occur in free state or native state ii) Earthly or undesired materials present along with ore are called gangue iii) Among metals, aluminium is the most abundant in the earth crust iv) All ores are minerals but all minerals are not ores v) Gemstone "Ruby" is the impure form of Al_2O_3 containing impurity : Co vi) The set of d-block elements Cu, Ag, Au mostly occur as sulphide ore