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The value of the energy for the first excited state of hydrogen atom will be:
(1) - 13.6 ev
(2)- 3.40 eV
(3) -1.51eV
(4) -0.85eV
Ans: - 3.40 eV
ionic bonds are usually formed by combination of elements with
K3[Al(C2O4)3]
Carry over in steam boiler: The phenomenon of carrying of water along with impurities by steam is called "carry over". This is mainly due to priming and foaming. Priming and foami
laws of chemical combination
how is hydrogen peroxide storage in equatorial places (phil)? should it require 2-8 deg C? or ambient room? any special cabinets or equipment sof storing?
Aldehydes and Ketones Carbonyl compounds are of two types, ketones and aldehydes. Both of them comprise a carbon-oxygen double bond frequently known as carbonyl group.
discovered boron family
stability of cr3+ions from fe3+ions in aqueous medium
A mixture of air and methanol vapour is fed to a converter in which the following reactions take place: CH OH O HCHO H O 3 2 2 2 1 + ® + 3 2 CH OH ® HCHO + H In addit
def '' purpose advantages
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