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प्रश्न
What do you observe when caustic soda solution is added to the following solution: first a little and then in excess : CuSO4
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उत्तर
Addition of Caustic soda to CuSO4 Solution :
\[\ce{CuSO4 + 2NaOH ->\underset{\text{Pale blue ppt.}}{ Cu(OH)2 v + Na2SO4}}\]
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संबंधित प्रश्न
State one relevant observation for the following.
Lead nitrate solution is treated with sodium hydroxide solution dropwise till it is excess.
Give a chemical test to distinguish between the given pairs of chemicals:
Lead nitrate solution and Zinc nitrate solution
Name
a metallic hydroxide soluble in excess of NH4OH.
What do you observe when freshly precipitated aluminium hydroxide reacts with caustic soda solution? Give balanced equation.
What is the reaction of freshly precipitated aluminium hydroxide with caustic soda solution? Give equation.
What do you understand by amphoteric oxide? Give the balanced equations for the reaction with three different amphoteric oxides with a caustic alkali. Write your observation if any.
Name a metallic hydroxide soluble in excess of NH4OH.
Name a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.
Name : A yellow monoxide that dissolves in hot and concentrated caustic alkali.
Fill in the blank.
To distinguish soluble salts of zinc and lead ______ [NaOH / NH4OH]can be used.
