Why should the metal sulphides and carbonates be converted to metal oxides in the process of extraction of metal from them?
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Consider the following: 1. Oxides of Hydrogen 2. Oxides of Nitrogen 3. Oxides of Sulphur
(c) Acid rain is a rain or any other form of precipitation that is unusually acidic, i.e. elevated levels of hydrogen ions (low pH). It can have harmful effects on...
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Consider the following : 1. Carbon dioxide 2. Oxides of nitrogen 3. Oxides of sulphur
(d) By products of power thermal plant operation need to be considered in both the design and operation. Waste heat due to the finite efficiency of the power cycle must...
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Metallic oxides are ________ in nature, but non-metallic oxides are __________ in nature.
(d) basic, acidic
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Atmospheric nitrogen is converted to nitrogen oxides
(a) when fossil fuels are burned at high combustion temperatures.
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State the type of chemical reaction used for the extraction of metals from their naturally occurring chlorides or oxides.
Electrolytic reduction
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Classify the following into acidic oxides and basic oxides : Na2O, SO2, MgO, CO2,
Acidic oxidas -SO2,CO2 . Basic oxides -Na2O, MgO
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What ate amphoteric oxides? Give two examples of amphoteric oxides?
An amphoteric compound is a molecule or ion that can react both as on acid as well as a base. Many metals such as Zinc, Tin, Lead, aluminum and can...
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Define amphoteric oxides. Give two examples of such oxides.
Oxides which show both acidic and basic behaviour and oxides that react with both acids as well as bases to produce salts and water. Example: Al2O3 and ZnO.
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Generally metallic oxides are basic and non-metallic oxides are acidic in nature.
(a) sulphur dioxide
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On heating lead nitrate forms oxides of nitrogen and lead. The oxides formed are ______.
(ii) NO2, PbO
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