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in electrolysis of Cr2(so4)3 solution using 2 ampere the mass of cathode increased 8g.how long was electrolysis conducted here i think Cr shud not be discharged and H+ shud be discharged!!!!!!!!! am i right???? but if it is s ...
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sommerfield explained the drawback of spliiting of lines when resolved , of bohr by saying that the orbits are elliptical . but what is the necessity that the lines need to have futher futher splittings in elliptical orbits? ...
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i read the following from a book but i am not able to understand how the generalised formula is given.plz explain after reading these "the no. of spectral lines produced when electron returns from n2 to n1 energy level =( n2- ...
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do anybody know the derivations for the following: >bohr's formula En= 2π2me4 n2h2 >bohr's radius rn= a0n2 Z & rn= a0n2 >mvr=nh 2 π ...
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how to find a compound is polar or nonpolar, ...
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61. If elements of principal quantum number n > 4 were not allowed in nature, the number of possible elements will be (1) 4 (2) 32 (3) 60 (4) 64 pls give explanation thanks... ...
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Calculate the molar chloride concentration in a solution prepared by dissolving 1.12 L of hydrogen chloride in 2.5L of water at 298 k. Solute exist as a strong electrolyte & dissociates completely into ions. ...
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which of the following reactions is irreversible 2KClO3 -> 2KCl + 3O2 or Fe3+ + SCN -> Fe(SCN)2+ ...
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Wat are the oxidation states of Nitrogen and Hydrogen in N2H4 (hydrazine) My ans didnt match wid da one given in da buk so wanted 2 confirm ...
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is there someone in delhi, who has any of the following packages and is willing to sell them??? (especially chem and maths) 1.Brilliants + YG file 2.Resonance email me at :cjs1234@rediffmail.com ...
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WHAT DO U MEAN BY SOLVATION OF IONS(EXACTLY)??????????? ...
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Which of the following is not a synthetic fibre ? 1. Rubber 2. Nylon-6 3. Nylon-6, 6 4. Nylon-6, 10 ...
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The two functional groups present in a typical carbohydrate are : (1) -OH and -COOH (2) -CHO and -COOH (3) > C = O and - OH (4) - OH and -CHO which is correct i think 3 & 4 both are correct ...
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Q 1 litre of a mixture of He and CO2 diffuses in 10 minutes under similar condition. If 1 litre of Helium diffuses in 5 minutes. Then the composition of Helium and CO2 in the mixture is 1) 70 : 30 2) 35 : 65 3) 50 : 50 4) 25 ...
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which of the following reactions ll generate an isotope a)neutron particle emission b)positron emission c)α particle emission d)β particle emission ...
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which of the following reactions ll generate an isotope a)neutron particle emission b)positron emission c)α particle emission d)β particle emission ...
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amount of oxalic acid present in a solution can be determined by its titration with kmno4 soln in d presence of h2so4.the titration give insatisfactory result when carried out in presence of hcl becoz hcl a)gets oxidised by o ...
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PLZ DISCUSS QUESTION 1,2,7,8,9,13 OF TEST 352 PLZZ ...
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TEST 352 IN THE TEST SECTION APPEARING ON SCREEN ...
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what is the electronic configuration of Pd (46) a. 2, 8, 18, 18 b. 2,8,18,17,1 c. 2,8,18,16,2 ...
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I have certain queries in equilibrium- 1.Why equilibrium cannot be attained in a open container? 2.What is effect of decreasing pressure on the position of equilibrium? 3.What are the units of Kp & Kc? ...
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ANISOTROPY ? N WHICH WILL SHOW ? GLASS PAPER IODINE WOOL WOOD ? ...
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IN SALT ANALYSIS wat r d gp. detecting & confirmatory test for 1) Bi3+ 2)Cr3+ 3)Ca2+ ...
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this thread is made to share ur imp information so that others may be benefited ...
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find the atoms having same no of s and p electrons means no of electrons in s orbital=no of electrons in p orbital ...
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θ2,0 φ1 values varies as (Z2-R2)/R2 it will indicate the orbital a)dxy (b)pz (c)dx2-y2 (d) dz2 ...
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does C2 exist( it does in vapour state ) now, does c4 exist?????? acc to me, they may / shud luk like this: *Image* ...
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well guys it's only testing your analytical skills partly and some chemistry skills . read the first passage carefully.and answer it's easy . yet gave. and second one organic is nice. try it . *Image* passage for 1st @ rom te ...