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Q: A metal whose oxide is reduced only by carbon?
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A metal forms two oxidesThe higher oxide contains 80 percent metal 0.72g of lower oxide gave 0.8g of the higher oxide when oxidised Show that the data illustrates the law of multiple proportions?

In higher oxide Metal = 80% Oxygen = (100-80)% = 20% Therefore, we can say that 4 parts of metal combines with 1 part of oxygen. Now, 0.72 g of lower oxide on oxidation gives 0.8 g of higher oxide. It can be assumed that the mass percent of metal in 0.8 g is same as that of 0.72 g of lower oxide. So, Mass of metal in higher oxide = (80/100) x 0.8 g = 0.64 g If in 0.8 g of higher oxide 0.64 g is metal then mass of oxygen present in higher oxide will be (0.8 - 0.64) g = 0.16 g Since, lower oxide contains the same mass of metal as that of higher oxide, we need to calculate the mass of oxygen in lower oxide. Mass of oxygen in lower oxide = (0.72-0.64) g = 0.08 g According to Law to multiple proportions if two elements combine with each other to form two different compounds then the ratio of masses of that element which combines with the other element whose mass is fixed in both the compounds, will be in small whole numbers. Now, in the given problem the mass of metal in both the oxide is fixed so, for the data to illustrate the law of multiple proportion the ratio of mass of oxygen in both the oxides should be in whole numbers. Now, mass of oxygen in higher oxide : mass of oxygen in lower oxide = 0.16 : 0.08 = 2 : 1. Therefore, it can be said that the given data depicts law of multiple proportion.


Is Tin a semi-metal?

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What are polar capacitors?

All electrolytic capacitors (e-caps) are polarized capacitors whose anode electrode (+) are made of a special metal on which an insulating oxide layer originates by anodization (forming), which acts as the dielectric of the electrolytic capacitor.


What is the name of the compound whose formula is NO2?

Nitrous oxide. This is a highly flammable gas, used medically as an anaesthetic.


Which metal which food is made?

iron is the metal whose food is made


Which Metal oxide is acidic in nature?

You might be referring to the metals whose oxides are amphoteric-can behave either as acids or bases. There are many of these, including zinc and aluminum. For more about this subject see the wikipedia article about amphoterism.


An element whose atoms can make straight chains branched chains and rings chains?

Carbon. Your welcome :)


The compound whose formula is SO3 is called?

Sulfur trioxide.


What determines the value of metal?

Metal value is determined by the purity of the metal. It is a commodity whose price depends on supply and demand.


Element whose atoms form the backbone of organic molecules?

carbon


What is a structure and properties of ferrite?

Ferrite has a cubic crystalline structure with the chemical formula MO.Fe2O3 where Fe2O3 is iron oxide and MO refers to a combination of two or more divalent metal (i.e: zinc, nickel, manganese and copper) oxides. The addition of such metal oxides in various amounts allows the creation of many different materials whose properties can be tailored for a variety of uses.


Is a compound whose molecules consist of one atom of carbon and two atoms of oxygen.?

Carbon dioxide is such compound. It contains one carbon and two oxygen.