Explain, Most metal oxides are insoluble in water but some of these dissolve in water. What are these oxides and their solutions in water called?
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Why is LiF almost insoluble in water whereas LiCl soluble not only in water but also in acetone?
In this case the hydration enthalpy is very less. Hence, LiF is insoluble in water. Due to its low hydration energy and partial covalent and partial ionic character LiCl is...
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Why alkanes do not dissolved in water but dissolve in benzene?
Because alkanes are non-polar and water is a polar solvent.
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Write the steps you would use for making tea. Use the words - solution, solvent, solute, dissolve, soluble, insoluble, filtrate and residue.
Take the solvent, water, in a kettle. Heat it. When the solvent boils, add the solute, milk. Milk and water forms a solution. Then pour some tea leaves over a...
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Write the steps you would use for making tea. Use the words - solution, solvent, solute, dissolve, soluble, insoluble, filtrate and residue.
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Name a metal When calcium metal is added to water the gas evolved does not catch fire but the same gas evolved
In both cases, the gas evolved is H2. When calcium reacts with water the heat evolved is not sufficient for hydrogen to catch fire. On the other hand, sodium metal...
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Why should the metal sulphides and carbonates be converted to metal oxides in the process of extraction of metal from them?
It is easier to obtain metal from its oxide, as compared from its sulphides and carbonates. So prior to reduction, sulphide ores are converted into oxides by roasting and carbonate...
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You have been given some mishri pieces (lumps of sugar). Suggest some ways to dissolve them quickly.
To dissolve the mishri quickly. First it should be crushed to make powder of it. Then after adding it into water, the mixture should be stirred thoroughly. The mixture could also...
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You read about different kinds of shelters in Jammu and Kashmir – some on high mountains, some on water, some with beautiful
The shelters of the people living on the mountains of Jammu and Kashmir are basically in the form of a tent called Rebo. These can be packed up and carried...
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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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Metallic oxides are ________ in nature, but non-metallic oxides are __________ in nature.
(d) basic, acidic
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