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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
In the reactant SO2 + O2 , then in the product it became SO3 , how?
Bond formed in crystal by anion and cation is: (1) Ionic (2) Metallic (3) Covalent (4) Dipole Ans: Ionic
IUPAC name is given to compounds. Carbon is an element so it will bw called as carbon only. eg. hydrocarbons - CH4=methane C2H6=Ethane
Relationship between nucleon number,proton number and the number of neutrons.
perkin ring clousre reaction
In an electrochemical cell a redox reaction perform in two halves. Electrons are liberated by the oxidation half reaction at one electrode and go through an electrical circuit
Advantage and disadvantage of westron
What are uses of benzaldehyde
list the physical properties of two examples of metallic and non metallic elements
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