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what is the class of HS
Q. Describe about Halide Minerals? Highly electropositive alkali and alkaline earth metals tend to form halide salts, which being soluble in water are washed away into the ocea
give examples
what are the subatomic particles present in an atom?
Average rate of a reaction is defined as the rate of change of concentration per unit time. It is calculated by dividing the total change in concentration of any one of the react
Q. Describe about tetrahalides? S, Se, Te and Po form tetrahalides with all the halogens. However, tetrafluoride of polonium, tetrabromide of sulphur and tetraiodides of sulphu
The energy of electron in hydrogen atom in its grounds state is -13.6 eV. The energy of the level corresponding to the quantum number equal to 5 is: (1) -0.54 eV (2)
AS THIS ALKALI METALS HAS LARGE SIZE AND LESS IONISATION ENERGY THEY LOSE THEIR OUTERMOST ELECTRON EASILY. PHOTOELECTRIC EFFECT MEANS EJECTION OF ELECTRONS FROM A METAL WHEN THEY
Rancidification - chemical properties of oils and fats On long storage in contact along with air and moisture, oils and fats develop unlikable smell. The process is termed as r
Explain the Purposes of tempering Tempering is a heat treatment approach for alloys and metals. In steels, tempering is done to "toughen" the metal by transforming brittle ma
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