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Catalogs Discussion Forums -> Inorganic Chemistry -> which metal explodes whn com in contact with water n why?? -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
dats y its stored in kerosene......
Catalogs Discussion Forums -> Inorganic Chemistry -> role of water in litmus test of an acid -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
it is to release the ions........otherwise it will remain a cpd itself...
Catalogs Discussion Forums -> Counselling Zone -> Help Please.What is the best among these options ? (NIT Trichy Chemical) (NIT Trichy Civil ) -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
hey in nit trichy,all r gud.......sastra comp sci is gud.....dunno abt d rest
Catalogs Discussion Forums -> Counselling Zone -> which NIT is better for mechanical engg , NIT trichy or NIT warangal ? -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
trichy of course...................!!!!!!!!!!!!!!!!!!!!!
Catalogs Discussion Forums -> Inorganic Chemistry -> WHY HOCL IS MORE ACIDIC THAN HCLO4 -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
ya more the no. of Cl-O bonds more is the acidity.
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Catalogs Discussion Forums -> Inorganic Chemistry -> explain clearly -> Go to message
This Post 2 points    (Olaaa!! Perrrfect answer.   in 1 votes )   [?]
1)CsI-bcoz both of the atoms r large in size and weak forces bind them.so their lattice E is less.Li and F are very small so the forces of attraction are strong and so lattice E is high.

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Catalogs Discussion Forums -> Organic Chemistry -> FIIT-JEE AIEEE Mock paper question -> Go to message
This Post 5 points    (Olaaa!! Perrrfect answer.   in 1 votes )   [?]
yup its NH4+ .ts not that N is deficient of e- but has used its e to accept a H+. so it can regain its e- by releasing a H+.but the others r diff.BCl3 is a lewis acid.Hg2+ is stable in this config.CH3+ cannot accept e- due non availability of d orbitals in C.
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Catalogs Discussion Forums -> Physical Chemistry -> fgh -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
1M = n1/0.1 => n1 = 0.1
similarly n2 = 0.4 , n3 = 0.9
total no. of moles of HCl = 1.4
1M = 1.4 / x => x = 1.4L of water shd be added.

am i right?
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Catalogs Discussion Forums -> Physical Chemistry -> ENergy of orbitals!!!!!!!!!!!!! -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
in atomic structure,
 
1)  if n = 4, l = 0,
2)  if n = 3, l = 2
which has more energy?
by using bohr-burry rule 2) has more energy, but if we see the quantum no. 1) has more energy.
 
Confusing!!??
 
which one should we use & which is the right answer?
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Catalogs Discussion Forums -> Organic Chemistry -> conversion in org. che. -> Go to message
This Post 5 points    (Olaaa!! Perrrfect answer.   in 1 votes )   [?]
for the reverse:
1)convert NH2 to N2Cl and add H3PO3 and get tribromobenzene(NH2 grp is removed).
2)now convert Br to OH by Dows process(add NaOH at 623K).
3)now add Zn dust,ZnO is removed and u get benzene

rate if useful
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Catalogs Discussion Forums -> Differential Calculus -> find dy/dx -> Go to message
This Post 5 points    (Olaaa!! Perrrfect answer.   in 1 votes )   [?]
simple.....

sin(x+y)-log(x+y)=0
diff, cos(x+y) * (1+y') - (1/(x+y) )*(1+y')=0
(1+y')[cos(x+y)-(1/(x+y))=0
y'=-1

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Catalogs Discussion Forums -> Physical Chemistry -> Confusion...rates assured -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
wt=25*300/100 + 40*400/100 =75+160=235g
mass%=235*100/700=33.57%
am i right??????
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Catalogs Discussion Forums -> Electricity -> eq. resistance-2!!!!!!!!!!! -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
how do v find the eq R in infinite r combinations.plz give a general method for these.i am stuck half way thru.
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Catalogs Discussion Forums -> Electricity -> SOLVE IT IF U CAN!!! -> Go to message
This Post 5 points    (Olaaa!! Perrrfect answer.   in 1 votes )   [?]
when the capacitor is grounded the grounded plate is at potential =0.but the other plate will have its charge and also a potential due to it.since S2 is not closed,thus the potential of the inner plates remain 30 and 20 only.
V1=30-0=30
V2=20-0=20
thus ans is d)
hope this helps
rate if its correct
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Catalogs Discussion Forums -> Coaching Institutes & Course Material -> whether or not to get da brilliant tutorial material? -> Go to message
This Post 5 points    (Olaaa!! Perrrfect answer.   in 1 votes )   [?]
i dunno about brilliant as i used fiitjee only.but the books u hv r sufficient for jee.practise every problem from them.

ALL THE BEST
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Catalogs Discussion Forums -> Electricity -> eq. reisitance!!!!!! -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
@ karthik2007
i too did it in the same way and got 3R/4.also there is an option like that. but the book gives an xplanation for its ans which i dont understand.not even a bit.the eq. circuit is fully confusing
wat do i do now???????
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Catalogs Discussion Forums -> Electricity -> eq. reisitance!!!!!! -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
nope the ans is 5R/6
dunno how
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Catalogs Discussion Forums -> Electricity -> eq. reisitance!!!!!! -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
find eq resistance between A and B.each is equal to R.
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Catalogs Discussion Forums -> Games, Puzzles and Quizzes -> Wich IPL team do ya support??????????? -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
I SUPPORT
CHENNAI SUPERKINGS!!!!!!!!!!!!!!
AND
KOLKATA KNIGHT RIDERS!!!!!!!
 
NO MATTER WHAT HAPPENS ,ITS ALWAYS THE KNIGHTS WHO FIGHT AND THE KINGS WHO RULE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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Catalogs Discussion Forums -> Trignometry -> please solve -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
1) the chord subtends an angle of 45 at the centre(it is a theorem)
area of the sector=(45/180) * pie *R^2=(pie/4)*R^2
remaining area=pie*R^2-(pie/4)*R^2=(3pie/4)*R^2
area of the triangle made by the chord at the centre=
(1/2)*R^2*1/root 2
net area=(3pie/4)*R^2-R^2/2 root 2

plz correct me if m wrong
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