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ECAT and MCAT Preparation: Post your doubts here!

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SOME OF THE CHEMICAL FORMULAE I FOUND IMP. FROM APTITIUDE TEST POINT OF VIEW...

AMONG THESE THERE ARE SOME FROM WHICH WE ARE ALREADY AWARE OF, BUT SOME ARE NEW..



acetic acid = CH3COOH
aluminium sulphate = Al2(SO4)
aluminium phosphate = Al(PO4)
ammonium acetate= CH3COONH4
ammonium bicarbonate= NH4HCO3
aqua regia(royal water)= CONC.HCl + CONC. HNO3
bismuth carbonate= Bi2(CO3)3
bismuth suphate= Bi2(SO4)3
boric acid= H3BO3
calcium phosphate= Ca3(PO4)2
calsium silicate= CaSiO3
carbonic acid= H2Co3
chromium chloride= CRCl2
cuprous chloride= CuCl
chromium oxide= CrO
cuprous nitrate= CuNo3
ferric chloride= FeCl3
ferric hydroxide= Fe(OH)3
ferrous hydroxide= Fe(OH)2
ferrous sulphide= FeS
formic acid= HCOOH
sodium bicarbonate= NaHCO3
sodium aluminate= NaAlO2
pottasium superoxide= KO2
phosphorous penta chloride= PCl5
phosphorus acid= H3PO4
phosphene= PH3
nickel sulphate= NiSO4



SOME THING IMP. i WANTED TO SHARE...
ACCORDING TO THOMSON'S THEORY THE CENTRAL ATOM OXYGEN IS SURROUNDED BY THE FOUR lone pairs OF ELECTRONS.
(LIKELY TO COME IN TEST )
 
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WEL HERE IS 8TH JULY NUST GUYS :p

AND IN PIEAS TEST IN CHEM. PORTION WHAT WAS THE ANSWER TO THE QUESTION

THAT WHEN TWO UNSYMETTRICAL COMPOUNDS REACT

WUNDS, HUCKLE HUNDS??? OR WHAT??
 
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Yeah paper based test is on 8th. But you get to choose your test date for the computer based test :) And it was markonikov's rule.
hymm forever...in that limit question....i remember my ans to be 4 bt dont remebr the sign...that was it +ve or -ve....well by the way to cnfirm ...i just substituted the poin into the given function......there was no algebraic manipulation ryt?????
 
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how many correct and wrong u u guyx did here....i attempted 96 with 88 correct and 8 wrong
 
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hymm forever...in that limit question....i remember my ans to be 4 bt dont remebr the sign...that was it +ve or -ve....well by the way to cnfirm ...i just substituted the poin into the given function......there was no algebraic manipulation ryt?????

Yeah. The question was pretty simple. no algebraic processes were required.
 
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well m expecting to get 86-87 percent on test.....do i have a chance in pieas......there are 180 seats there

Well you can never be sure because there are very limited number of seats. But if you ask me, i think you dont have much to worry about. You got a pretty good chance. :)
 
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hymm forever....there 180 seats!!!...jin ka buht acha bhi hua hay unki 3-4 mistake tou hon gee.....\
well wat abt this one
would the guest like the dinner?The cooks have worked hard to make it.....is this sentence grammatically correct......or shud the have here be removed
i mean only worked hard ....
 
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hymm forever....there 180 seats!!!...jin ka buht acha bhi hua hay unki 3-4 mistake tou hon gee.....\
well wat abt this one
would the guest like the dinner?The cooks have worked hard to make it.....is this sentence grammatically correct......or shud the have here be removed
i mean only worked hard ....
180 seats for from what i heard 50 000 kids :eek:
I choose the same as you, but now i am beginning to have doubts :unsure:
I think the sentence should have "have"
 
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yar do u remmebr PV =nRT wale question emin pressure,,,,,,.....aur temp. kiya tha.,...pressure was in atmosphere.....wat was ans.....1.46*10^6
 
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yar do u remmebr PV =nRT wale question emin pressure,,,,,,.....aur temp. kiya tha.,...pressure was in atmosphere.....wat was ans.....1.46*10^6


I thnk temp. was 25 centigrade..
pressure was 127 or 197 not exactly sure..

for that english section question.... I have doudts.... atm, I even don't remember that what I marked... have or had :unsure:
 
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