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Question
State one relevant observation for the following.
Lead nitrate solution is treated with sodium hydroxide solution dropwise till it is excess.
Solution
ppt. of lead hydroxide is observed
`Pb(NO_3)_2 + 2NH_4OH -> Pb(OH)_2 + 2NH_4NO_3`
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RELATED QUESTIONS
Give a chemical test to distinguish between the given pairs of chemicals:
Lead nitrate solution and Zinc nitrate solution
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a metallic hydroxide soluble in excess of NH4OH.
Name a weak alkali.
Name two colourless metal ions.
Name two coloured metal ions.
Name a metal that evolves a gas which burns with a pop sound when boiled with alkali solutions.
Name: A strong alkali
Fill in the blank.
The substance/s which react with hot conc. NaOH solution and undergoes a neutralization reaction ______ [Al2O3 / Al / Al(OH)3]
Write the equation for the following reaction :
Zinc oxide is treated with sodium hydroxide solution.
Why the alkali is added drop by drop to the salt solution?
