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N2O4 [eq] 2NO2 N2O4 is 20% dissociated at 27°C and 1 atm pressure. Find the % dissociation at 27°C and 0.1 atm pressure ...
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A 10 g mixture of CuS and Cu2S was treated with 400 ml of 0.32 M KMnO4 in acidic medium producing SO2. The SO2 gas was boiled off and the excess KMnO4 was titrated with 80 ml of 1 M FeSO4 solution. Calculate the percentage co ...
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50 ml of 1 M HCl, 25 ml of 4 M HNO3 and x ml of 5 M H2SO4 are mixed together and the total volume is made up to 1 L with water. 100 ml of this acid mixture exactly neutralizes 25 ml of 1 N of NaOH solution. The value of x is ...
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Phosphorus and oxygen react to form P4O6 & P4O10. Equal weights of phosphorus are used and are completely exhausted. Find the ratio of weight of P4O6 & P4O10 formed ...
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A solution of H2O2 is titrated with a solution of KMnO4 in acidic condition. It requires 50 ml of 0.235 M KMnO4 to oxidize 10 g H2O2. The mass percentage of H2O2 is ...
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500 ml of 2 M HCl and 500 ml of 6 M HCl are given. What will be the maximum volume of 5 M HCl that you can make from these two solutions? ...
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tan3a-tan2a-tana= (a≠n.pi/2) ...
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equal volumes of aqueous solution of 10-8 M HCl and 10-8 M NaOH are mixed, find the resultant pH ...
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In a litre of water, 10-8 mole of NaOH is added first and then 10-8 M of HCl is added. The pH of the resultant solution is ...
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pH of aqueous solution of HCl is 6.5, the [Cl-] is ...
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The pH of 10-3 M NaCl aqueous solution is ...
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In a litre of water, 10-8 mole of HCl is added first and then 10-8 M of NaOH is added. The pH of the resultant solution is ...
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Find the pH of 10-8 M HCl solution ...
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With Nessler's reagent(alkaline solution of K2HgI4), ammonia & ammonium salts give brown ppt due to the formation of millon's base, which is ...
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Substance soluble in ammonia is ...
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Ammonia can be dried by ...
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When ammonia is passed over heated CuO, it is oxidized to ...
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Which of the following statements is correct for the manufacture of ammonia by Haber's process? ...
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Ammonia is produced when ammonium chloride is heated with ...
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Calcium cynamide on treatment with steam under pressure gives ...
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Which of the following compounds are formed when BCl3 is treated with water? ...
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B(OH)3 is ...
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Boric acid is polymeric due to ...
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Boric acid on reaction with ethyl alcohol and conc. H2SO4 gives ...
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Boric acid on reaction with NaOH gives ...
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When orthoboric acid is heated strongly, it gives ...
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Bric acid can be prepared from colemanite by the action of ...
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H3BO3 is ...
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Boric acid is prepared from Borax by the action of ...
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When Borax is heated strongly it gives ...