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The configuration 1s2 2s2 2p5 3s1 shows:
(1) Excited state of O2-
(2) Excited state of neon
(3) Excited state of fluorine
(4) Ground state of fluorine atom
Ans: Excited state of neon
A 0.5M solution of NaNO2 is made. What is the pH of the solution?
Chain, nuclear or skeleton isomerism: This form of isomerism arises because of the difference in the nature of the carbon chain (that is straight or branched) which makes the
The mass of CaCl2 (molar mass= 111.0) required to prepare 75.00 milliliters of a 2.000 molar solution of this salt is?
biosorption of methylene blue dye using acid treated mango leaf powder
What are photochemical reactions? Explain the mechanism of the photo- chemical reaction occurring among hydrogen and chlorine gas.
#1.draw the structural formula for ethylcyclopentene
How do you account for the following: (a) All scandium salts are white. (At. No. of Sc = 21) (b) The first ionization energies of the 5d transition elements are higher than
Preparation of saturated calomel electrode and determination of standard potentials of electrodes such as Cu 1 Cu, Zn 1 Zn, etc. Comparison of the potential values with values from
what is the properties of alkenes and alkynes
Fe+ AgNO3-->Fe(NO3)2 + Ag
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