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          All posts related to Chemistry

          Suharsh S Nara
          Shared from BITSAT Mock - 9 on May 09, 2019 11:24 PM

          A solution containing one mole per litre of each Cu(NO3)2, AgNO3, Hg2(NO3)2 and Mg(NO3)2, is electrolysed by using inert electrodes. The values of standard electrode potentials in volts are Ag/Ag+ = +0.80, 2Hg/Hg22+ = +0.79, Cu/Cu2+ = +0.34, Mg/Mg2+ = -2.37. With increasing voltage, the correct sequence of deposition of metals on the cathode will be

           
          Ag, Hg, Cu and Mg
          Mg, Cu, Hg and Ag
          Ag, Hg and Cu
          Cu, Hg and Ag
          Please type your answer before submitting.
          Suharsh S Nara

          It should be Ag, Hg, Cu

          Amrit
          Shared from Atomic Structure - 1 (NTSE/ NSEJS) on May 07, 2019 10:43 AM

          Which of the following could be concluded from Rutherford's experiment?

           
          _ rays are positively charged.
          The size of the nucleus is almost equal to the size of the atom.
          The nucleus has no charge.
          The size of the nucleus is very small as compared to the size of the atom.
          Please type your answer before submitting.
          Amrit

          English problem

          Hema Nani
          Shared from Chemistry (Practice Test) on Apr 24, 2019 1:30 AM

          The CO2 gas does not follow gaseous laws at all ranges of pressure and temperature because

           
          it is a triatomic gas
          its internal energy is quite high
          there is attraction between its molecules
          it solidifies at low temperature
          Please type your answer before submitting.
          Hema Nani

          Ok

          Dhruv Jagannath
          Shared from Chemistry (Practice Test) on Apr 23, 2019 6:18 PM

          Which of the following is anhydride of perchloric acid?

           
          Cl2O7
          Cl2O5
          Cl2O3
          HCIO
          Please type your answer before submitting.
          Dhruv Jagannath

          Question no 16 can you give me the structure of anhydride of perchloric acid

          View More
          Arjun Chakkrapani
          Posted on Apr 17, 2019 9:28 PM

           
          = + /RT
          = + RT
          = - RT
          = + RT/
          Please type your answer before submitting.
          Arjun Chakkrapani

          Isn't del(U)=Q del(ng)RT. SO wont it be option c