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प्रश्न
Brown ring disappear if the test tube is disturbed.
उत्तर
lf the test tube is disturbed brown ring will disappear because the complex formed will get dissolved in the layers of the liquid.
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संबंधित प्रश्न
Name a metal nitrate which on heating is changed into metal oxide.
Give reason for the following:
Concentrated nitric acid is brown in colour.
Write balanced equation and name the product formed when :
Concentrated nitric acid is heated.
Fill in the blank with appropriate word/words.
3 Cu + 8 HNO3 (dilute) → _______ + 4H2O + _________
Write balanced equation for the reaction between nitrogen and oxygen, when lightning strikes.
Write the equation for the reaction of dilute nitric acid with copper.
The figure given below illustrates the apparatus used in the laboratory preparation of nitric acid:
(i) Name A (a liquid), B( a Solid) and C(a liquid).
(ii) write the balanced chemical equation to show how nitric acid undergoes decomposition.
(iii) Write the balanced chemical equation for the reaction in which copper is oxidized by concentrated nitric acid.
Write a balanced equation for following :
Reaction of ammonia with nitric acid
Give one test to distinguish between the following pair of chemicals.
Zinc nitrate solution and calcium nitrate solution.
Explain why nitric acid is kept in a reagent bottle for a long time.
