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Given are Positive integers not exceeding a fixed integer constant M. If the LCM of every 2 of them is greater than M,prove that the sum of the reciprocals of these numbers is less than 3/2 ...
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need help regarding some basic things tiitians..............very confused... Q1 is metallurgy only abt mines ???does it restrict us to mines only ??? please elaborate on fuure prospects ...job wise and further study wise too ...
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long time since posted ques.............here are some for 2011 aspirants daily updates..... Day1 Q1 Express 1*3*5*...*(2n-1)/2*4*6*8....*(2n) as a/2w where a is odd and w<2n Q2 Prove that there is no prime number in sequen ...
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\int_{-1}^{2}{x^2} dx whats the need to integrate ?????jsut fill in values.. (2)^2-(-1)^2 =4-1 =3 [3][3] ...
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Eq constant for reaction [Ag(CN)2]- ≈ Ag+ +2CN- is 4 x 10-19 calulate silver ion conc in a soln which is originally 0.1M in KCN and 0.03 M in AgNO3 ...
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***Q2,4,5 done....plz reply only to Q1,3** *Image* ...
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Q1 [CoCl2(NH3)4]+ + Cl- → [CoCl3(NH3)3] +NH3 If the product shows only one type of isomer then reactant must be trans ..is my conclusion correct ?? Q2 Cu+ exists as s1d9 or d10 ?? ...
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2 \left| sin\frac{\pi x}{3!}\right|-3\left| cos\frac{\pi x }{4!}\right|+tan(\frac{e^{7x}}{e^{[7x]}}+tan\frac{7\pi x}{3}) ...
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Q1 Solublity order Beso4,MgSO4,CaSO4,SrSO4 Q2 2nd ionisation enthalpy Cr,V,T,Mn Q3 *Image* ...
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Q1 *Image* Q2 *Image* Q3 Which of the following is true? (a) O2– is a hard ion (b) O2+ is a hard ion (c) O2– is liquid ion (d) Both (b) and (c) are correct. ...
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*Image* ** not a dbt... ...
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plz rpely ASAP *Image* ...
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1) FeCl3 +SO2 → 2)Fe2O3 +NaOH +Cl2 → 3)CuSO4.5H2O +KCN(excess)→ will add more later.... ***not my doubts....just some exception reactions *** ...
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Q1 if n postiive integers are taken at random and multiplied together and pn is probablity that last digit of product is 2,4,6,8.Find pn and p4 Q2 2 integers r,s are drawn one at a time without relacememnt from set 1,2,3...n. ...
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Hydrogen atom HA-1 and Hydrogen atom HA-2 are in ground state and in first excited state. A metal plate accepts energies 12.1 eV and 1.9 eV respectively from an Emission spectra.(Work fn=2eV) Find the number of possible lines ...
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Q1 T/F [Co(NH3)6]Cl3 gives 2 moles of Cl– which react with AgNO3 to form 2 moles of AgCl. Q2Which of the following exist as dimer (A) Al(CH3)3 (B) CH3Li (C) Si(CH3)4 (D) Be(CH3)2 Q3Formation of complex involves (A) exotherm ...
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Q1 *Image* Q2 *Image* Q3 any concept for this question ???????????or simply memory stuff ?? *Image* ...
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2CH3COO-→C2H6+2CO2 +2e If current effiicency=80%,what vol of gas is produced at 27C and 740 torr if current of 0.5 A is passed for 96.45 min ...
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Calculate Potenial half cell Ag2S (s) +2e =2Ag(s) +S2-(aq) in osln buffered at ph=3 which is also saturated with 0.1M H2S (Aq) ** = denotes equilbm ...
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Sorry for double post....plz reply here http://targetiit.com/iit-jee-forum/posts/no-idea-part3-15384.html ...
