Messages posted by chimanshu_007

first let IIT-JEE 2009 happen.....if u have heard abt 2010 nw , its 100% a rumour.....

hybridization is sp3 , structure is bent....

My name is chiki chiki slim shady

hehe

ask some acedemic qs man

wont be available much here frm nw on....sooo keep studying :)

thanx fr the comments.....mates.,...

thanx for the wonderful comments......but last 4 i dint gt wat they meant :|

hey frnz happy teachers' day to all of u.....

respect ur teachers.....who help u to learn not only acedemic things , but also help u to develope personalit wise....

God bless and long live our teachers

"For teaching children lessons,

to help them as they grow,

Let this gift remind you,

You're the best teacher we know!".

concentration is the key , see every student has same and equal mind like that of his fellow mates , its upto him how he utilizes his mind....
according to me , if u study or elarn sth with full dedication and concentration and u got that concept once , u wont forget it
learn by writing , study with full dedication and see the difference...

all the best....

competition zone (i think it was in sector 20) had a split up 2 years back......

tutors are still der bt the give individual coaching nw

isnt it?????

bt yeah as above said , maths was good one of mah frnd went to feroz khan and he always praised him....

u can go to feroz khan for maths , BM Sharma for physics and sangeeta khanna for chem if u are interested in individual tutions...

^^^^

ronaldo is injured , will b back somewhere in october

manucho gt his work permit , bt he too is injured
santa cruz signed a new deal with rovers.....forget abt him
forget abt benzama and owen too
berba/huntelaar , we must get one of the above 2
robinhio to chelsea.....dey are looking quite stronger now....

bt still 1 striker is all we need......coz nani will b back fr liverpool and we have brazillian twins....too
no need to add much if manucho is fit + injury prone saha

tevez rooney campbell saha manucho
if all 5 strikers are fit......do we want another??//

melting point of alkali metals decrease down the grp.....

http://www.goiit.com/posts/list/organic-chemistry-chemistry-77600.htm

As we move from right to left in a period , nuclear charge increases by 1 unit , but the number or shells remain same (in periods) , due to this increased nuclear charge , the electrons are pulled back to the nucleus making the shell smaller...

so acc to me

it shud be

C > N > O > F

but Neon will have the highest radius coz in noble gases , orbitals are completely filled so electronic repulsions are max. in them , also noble gases have van der waal's radius.....and all other elements have covalent radius.....and we knw that van der waal's radius is greater than covalent radius

so order will be

Ne > C > N > O > F

its

B > Al < Ga > In < Tl

Ga has irregular order coz of the non affective sheilding effect of d-electrons , so the nuclear charge increases

so u can say electrons are tightly held by the nucleus , so ionization energy is high

and Tl has irregular order coz of the same reason.....i.e non affective sheilding of f-electrons.....so I.E of Tl is very high.....

well dude i dunno....about these colleges.....
but yeah people say EC is tuffer..,....but this branch will never get down......its better to take EC.......

go for HCV for physics.....
P Bahadur for chemistry
and ARIHANT for maths

well u gt less time.....bt still if u try hard u can crack.....and 85% i have never heard of 85% attendance anywhere.....dey are just scaring u....70-75% attendance will do.....
and u can study at nite too.....probably 9-12 , 1 hour each subject....(the best u can do).....

Happy Independence Day

 Yahan vahan saara jahan dekh liya
Ab tak bhi tere jaisa koi nahin
Main assi nahin, sau din duniya ghooma hai
Naahi kaahe tere jaisa koi nahin
Main gaya jahan bhi, bas teri yaad thi
Jo mere saath thi mujhko tadpaati rulaati
Sab se pyaari teri soorat
Pyaar hai bas tera, pyaar hi
Maa tujhe salaam, maa tujhe salaam
Amma tujhe salaam
Vande maataram, vande maataram
Vande maataram, vande maataram
Vande maataram, vande maataram
Janam janam tera hoon deewana main
Jhoomoon naachoon gaaoon tere pyaar ka taraana
Main jeena nahin soch nahin duniya ki daulat nahin
Bas lootunga tere pyaar ka khazaana
Ek nazar jab teri hoti hai pyaar ki
Duniya tab to meri chamke damke maheke re
Tera chehra sooraj jaisa chaand si thand hai pyaar mein 
Vande maataram, vande maataram
Vande maataram, vande maataram
Vande maataram, vande maataram
Tere paas hi main aa raha hoon
Apni baahein khol de
Zor se mujhko gale laga le
Mujhko phir voh pyaar de
Tu hi zindagi hai, tu hi meri mohabbat hai
Tere hi pairon mein jannat hai
Tu hi dil, tu jaan, amma
Maa tujhe salaam, maa tujhe salaam
Amma tujhe salaam, maa tujhe salaam
Vande maataram, vande maataram
Vande maataram, vande maataram
Vande maataram, vande maataram
Vande maataram, vande maataram  JAI HIND

ans 3)take volume of CH₄ = x

N₂ = y

CO = z

we are burning in excess of O₂ so write the reactions firstly

CH₄ + 2O₂ -------> CO₂ + 2H₂O

CO + 1/2 O₂ -------> CO₂

N₂ + O₂ wont give u any reaction

we are given x + y + z = 20 ml.............a)

from x ml of CH₄ we will get x ml of CO₂

N₂ will be unreacted

from z ml of CO we will get z ml of CO₂ ,

KOH will react with CO₂ (as KOH abosorbs carbon di oxide), so if it will abosorb , the volume will become less

it is given derz a contraction of 14 ml

so

x+z = 14 ml...............b)

now see the reactions

x ml of methane will take 2x ml of O₂ (2 moles)

z ml of CO will take z/2 ml of O₂ (1/2 moles)

total moles of O₂ are given 13ml

so

2x + (z/2) = 13................c)

solve these equations......

ans 8)Fe present in 89600 units = (0.25/100)*89600

= 224

Fe atoms = 224/56 = 4 atoms

just 1 reply

http://www.goiit.com/user/profile/2883.htm

this guy dint gave IIT but look wat he is doing........so yes it is possible....

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