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deepak_agarwal (539)

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Olaaa!! Perrrfect answer. 83  bad job dude!! I dont approve of this answer! 3  [151 rates]

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hey wel 2 b honest it is nt dat 2 small a topic vich can taught rite here,,,nor do i think u ll b able 2 ndr stand it properly
it vud b advisable if u ask particular doubts reg dis topic
 
nywaz...
mole is d amt vich contains 6.023*1023 no. of particles
 
no. of moles=gms/atm. wt = gms/mol mass =vl at ntp/22.4 l = no. of atoms/Na
 
OXIDATION NO. / OXIDN STATE
1. oxdn no. of an atom in pure state is zero
2. oxdn no. of an elemental ion is d charge present on it. eg. oxidn no. of fe+2 is +2
3. in case of a compd oxidn no. of an element is d avg amt of charge present on 1 atom of it ven all odr atoms r removd in their standard oxdn state.
 
oxidn no. of an element can b obtaind usin d formula:
X1N1+X2N2+X3N3=CHARGE
where n1..is d no. of atoms
 
IMP POINTS....
oxdn no. of alkali metals is +1
oxdn no. of alkaline earth metals is +2
oxdn no. of halogens when attached 2 electro(+) elements is -1
usual oxidn no. oxygen is -2,,,in case of peroxides it is -1,,,in case of super oxides is -1/2...in OF2 it is +2
 
I HOPEIT HELPS U!!!!
 

a 2nd year IIT DELHI student, doing B.Tech in chemical engineering
 this reply: 5 points  (with Olaaa!! Perrrfect answer.   in 1 votes )   [?]
 
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