[the reduction of nitrate ...] The brown ring test for nitrates depends on

For Competitive Exams

The brown ring test for nitrates depends on

reduction of ferrous sulphate to iron

oxidation of nitric oxide to nitrogen dioxide

the reduction of nitrate to nitric oxide

oxidising action of sulphuric acid

Additional Questions

Which of the following is used to prepare Cl₂ gas at room temperature from concentrated HCl?	Answer
Which one of the following is not true at room temperature andpressure	Answer
The tendency of BF₃, BCl₃ and BBr₃ to behave as Lewis acid decreases in the sequence:	Answer
Which statement is NOT correct about fullerene C₆₀?	Answer
Which one of the following arrangements represents the correct order of least negative to most negative electron gain enthalpy for C, Ca, Al, F and O?	Answer
In which of the following compounds, nitrogen exhibits highest oxidation state?	Answer
Three reactions involving H₂PO– 4 are given below (i) H₃PO₄ + H₂O → H₃O⁺ + H₂PO– 4 (ii) H₂PO– 4 + H₂O → HPO2– 4 + H₃O⁺ (iii) H₂PO– 4 + OH^– → H₃PO₄ + O^2– In which of the above does H₂PO– 4 act as an acid?	Answer
Which noble gas is most abundant in atmosphere?	Answer
The correct order of increasing bond angles in the following species is	Answer
Among the following substituted silicanes the one which will give rise to cross linked silicone polymer on hydrolysis is	Answer

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