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The first use of quantum theory to explain the structure of atom was made by:
(1) Heisenberg
(2 )Bohr
(3) Planck
(4) Einstein
Ans: Bohr
what is the differance between inductomeric and inductive effect?
Dienes - Hydrocarbon These are hydrocarbon along with two carbon-carbon double bonds. Dienes are of three forms (a) Conjugated dienes: Double bonds are seperated through one
Q. What are the properties of water? Ans. Water is a colorless, odorless, tasteless liquid with a melting and freezing point of 0 o C and a boiling point of 100 o C at 1 a
The high melting point and insolubility in organic solvents of sulphanilic acid are due to its ...... structure: (1) Simple ionic (2) Bipolar
a) Write a balanced equation of the formation of dimethyl carbonate by the reaction of methanol with carbon dioxide. How can dimethyl carbonate form if phosgene is the reactant?
An ionic compound is generally a : (1) Good electrolyte (2)Weak electrolyte (3) Non-electrolyte (4) Neutral Ans: Good electrolyte
WHAT IS THE EQUIVALENT WEIGHT OF Mg(HCO3)2
Q. Structure of Covalent Bonds? Ans. A covalent bond forms between elements that are near each other in the periodic table While an ionic bond involves an exchange of e
Bond order is the number of chemical bonds between a pair of atoms. For example, in diatomic nitrogen N≡N the bond order is 3, while in acetylene H-C≡C-H the bond order between the
What are the advantages of graphite furnace AAS? tell the history of graphite furnace AAS
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