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In manufacture of iron a gas A is formed in zone of combustion of balst furnace.Gas A reacted with coke in zone of fusion to form another gas B.x moles of B react with iron at 200 C and 100 atm pressure to form C,one mole of ...
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can solvay's process be used to prepare potassium carbonate? ...
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Sulphurous acid acts as reducing as wel las oxidising agent..give reasons ...
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pls give structure of all isomers of the complex [ Co (NH3)5 (NO2) ] (NO3) ...
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Why is Chalcocite roasted and not calcined in the recovery of copper ? ...
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Assuming that deviation from standard conditions is unimportant in this case and that all these redox reactions go essentially to completion. Given: [Zn(CN)4]2- + 2 e- ------- Zn + 4 CN- E = -1.26 V [Au(CN)2]- + e- -------- A ...
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A sample containing H3PO4 and P4O10 is labelled in the analogous manner as oleum. The mass of P4O10 in a sample labelled as 127%, would be ? ...
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A)NH3+NaOCl→ p)N2H4 B)NH4NO2+NaOH→ q)N2 C)NH4NO3+Ca(OH)2→ r)NH3 D)(NH4)2Cr2O7→ s)H2O in all reactions heating is done. ...
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*Image* yaar i m getting answer as 2(H1-H2)*Navogadro/N0 but answer given is 2(H2-H1)*Navogadro/N0......... wat is correct me or book???? ...
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Out of the following, the correct option about the stability of given complexes 1. NiCl4-2 > PtCl4-2 2.PdCl42-> PtCl42- 3. [Ni(CO)4] = [Ni(CN)4]-2 4.PtCl4-2> PdCl4-2 ...
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Which of the following aqueous solution of cation (s) gives (s) white ppt. with NaOH and 4 NH OH solution and formed ppt. is/are further completely dissolved in one of the excess reagent a) Cd2+ b) Cr3+ c) Sn2+  d) B ...
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plzzzzzzzzzzzzz can anyone give the download link for j d lee!!!!!! ...
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PdSO4 and BaSO4 are insoluble in ____ and ___ ? ...
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Name the compound which can be used in space vehicles both to absorb carbon dioxide and liberate oxygen ...
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A very basic doubt everybody,still rectify. what's caustic potash,KOH isnt it. it was referred to in a question on identification and in answer booklet KCN has been used in it's place! ...
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l2 + S2O3^2– ----------------> ...
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(1)when conc. H2SO4 was treated with K4[Fe(CN)6],CO gas was evolved .if we use dil. H2SO4 instead of conc. then the gas evolevd is ...
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hybridiation is the chemists attemt to explain the observed molecular shape by constructing hybridised atomic orbitals with the appropriate inter-orbital angles.for the molecule,in which case deviation from nominal bond angle ...
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among the following substituted silanes the one which will give rise to cross linked silicon polymer on hydrolysis a)R4Si b)RSiCl3 c)R2Sicl2 d)R3sicl ...
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IUPAC name of- [(NH3)5Co-NH2-Co(NH3)5](NO3)5 ...
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(1) Which is the correct statement about S2 (g) molecule which forms above 1000°C? Molecular orbital theory of S2 is found to be similar to that of O2 molecule. (A) it is paramagnetic molecule having 2 unpaired electron. (b) ...
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Why is the ignition temperature of white phosphorus v low? ...
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Which od the following statement is correct for the hybrid orbitals (A) s + py + pz---->sp2 orbitals lie in the xy plane (B) ns + np3 + nd2 -----> results octahedral geometry of sp3d2 hybrid orbitals (C) None (D) All ...
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1)A 0.01M complex of CoCl2 & NH3 (molar ratio 1:4) is found to have effective molarity of 0.02M (evaluated frm colligative property). What is the formula of the complex ? A) [Co(NH3)4]Cl3 B) [Co(NH3)4Cl2]Cl C) [Co(NH3)5Cl]Cl ...
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Statement 1-Ag maybe prepared from Ag coins by treating them with HNO3 adn then with HCl to get AgCl but not directly treated with HCl Statement 2-HCl is not a good oxidising agent. ...
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A simple question --why is CO more stable than SiO ?? I initially thought that the size mattered , or simply inert pair effect was there . But that was not the answer at all !!! Try , fellows ...
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i Na2S2O3 + dil HCl → ii Na2S2O3(aq) + Cl2 → iii SO2 + H2S → iv H2S + H2O2 → the reacns givin yellow turbidity are: a)ii,iii,iv b)iii and iv c)i,iii,iv d)i,ii,iii,iv ...
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Inner orbital octahedral complexes of Ni2+ ion r not formed TRUE/FALSE ...