Of the options given, a physical property that does not belong to nitric acid is___
The physical properties of nitric acid are: - 1. The impure acid is yellow in colour. 2. It has boiling point 355.6 K. 3. It has a corrosive action on skin and produces painful blisters. 4. It is a colourless liquid.
On reaction of nitric acid with metals, the reduction products formed are____ and____
Reaction with metals which are more electropositive than hydrogen, nascent hydrogen is liberated. This further reduces nitric acid giving a variety of reduction products such as N2O, NO, NO2, NH3 and NH4NO3.
The specific gravity of the laboratory grade nitric acid is____
Laboratory grade nitric acid contains about 68% of nitric acid by mass and has a specific gravity of 1.504.
When three parts of concentrated hydrochloric acid reacts with one part of concentrated nitric acid, the products formed are_____, ____and____
When three parts of concentrated hydrochloric acid reacts with one part of concentrated nitric acid, the products formed are nascent chloride, water and nitrosyl chloride. The reaction is as follows: 3HCl + HNO3 ---------------> NOCl + 2H2O + 2Cl
The impurity present in impure nitric acid is____
The impure nitric acid is generally yellow in colour due to the presence of nitrogen dioxide as impurity. Nitric acid containing dissolved nitrogen dioxide is known as fuming nitric acid.
The balanced equation for the reaction NO3- + Fe2+ + H+ ----------> NO + Fe3+ + H2O is
The balanced equation is NO3- + 3Fe2+ + 4 H+ ----------> NO + 3Fe3+ + 2H2O.
When copper is treated with concentrated nitric acid, the gas formed is____
When copper is treated with concentrated nitric acid, the gas formed is nitrogen dioxide. The equation is: - Cu + HNO3 --------------> Cu(NO3)2 + NO2 + H2O
The formula of the compound formed during Brown ring test of nitrate radical is____
The formula of the compound formed during brown ring test of nitrate radical is pentaaquanitrosyliron (II) sulphate - [Fe(H2O)5NO]SO4. Brown ring test is be performed by adding iron (II) sulfate to the solution. When concentrated sulfuric acid is slowly added, a brown ring is formed on the test tube, which will indicate the presence of the nitrate ion. The test follows several phases. These have been written as balanced chemical equations: Equation 1 2 Zn(NO3)2 + 2 H2SO4 → 2 ZnSO4 + 4 HNO3 4 FeSO4 + 2 H2SO4 → 2Fe2(SO4)3 + 2H2 These two reactions happen simultaneously. Equation 2 4 HNO3 → 2 H2O + 3O2 + 4NO The Nitric Acid decomposes in the intense heat produced by the high concentrate Sulphuric Acid used. Equation 3 2Fe2(SO4)3 + 2H2 + 4NO → 4[Fe(H2O)5NO]SO4 + 2H2SO4 The [Fe(H2O)5NO]SO4 forms a brown ring in the middle of the solution produced by the reaction, making it easy to identify the presence of nitrates in the water.
The balanced equation for the reaction Fe + dil. HNO3 ------------------> is____
The complete balanced equation is: 4 Fe + dil. 10 HNO3 ------------------> 4Fe(NO3)2 + 3 H2O + NH4NO3
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