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प्रश्न
State one relevant observation for the following.
Lead nitrate solution is treated with sodium hydroxide solution dropwise till it is excess.
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उत्तर
ppt. of lead hydroxide is observed
`Pb(NO_3)_2 + 2NH_4OH -> Pb(OH)_2 + 2NH_4NO_3`
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संबंधित प्रश्न
When a metallic oxide is dissolved in water, the solution formed has a high concentration of ____________ ions (H+, h3O+, OH-)
Choose the most appropriate answer from the following list of oxides which fit the description
[SO2, SiO2, Al2O3, MgO, CO, Na2O]
An oxide which dissolves in water forming an acid
Name a weak alkali.
What is the reaction of freshly precipitated aluminium hydroxide with caustic soda solution? Give equation.
Name: A metallic oxide soluble in excess of caustic soda solution.
Name: Two coloured ions
Name: Two bases which are not alkalis but dissolve in strong alkalis.
Name a compound containing zinc in the anion.
Fill in the blank.
The hydroxide which is soluble in excess of NaOH is _________ [Zn(OH)2 / Fe(OH)3 / Fe(OH)2].
Why the alkali is added drop by drop to the salt solution?
