Advertisements
Advertisements
प्रश्न
State the effect of adding a small amount of : (a) sodium hydroxide (b) ammonium hydroxide followed by an excess in case to samples of the salt solutions.
Zinc nitrate [ small amount ________ in excess ________]
Advertisements
उत्तर
Zinc nitrate :
a. with sodium hydroxide :
- \[\ce{Zn(NO3) + 2NaOH -> Zn(OH)2 + 2NaNO3}\]
- On addition of excess of NaOH, white ppt. of Zn(OH)2 dissolves.
b. With ammonium hydroxide :
- \[\ce{Zn(NO3) + 2NH4OH -> Zn(OH)2 + 2NH4NO3}\]
- The gelatinous white insoluble ppt. of Zn(OH)2 dissolves in excess of ammonium hydroxide.
APPEARS IN
संबंधित प्रश्न
Name a nitrate which on heating leaves no residue behind.
Fill in the blank:
Aqua regia is a mixture of 3 parts ------------ and one part ------------.
Distinguish between the following pairs of compounds using the reagent given in the bracket.
Dilute hydrochloric acid and dilute sulphuric acid. (Using lead nitrate solution)
What is meant by the following term?
Aqua Fortis
What is meant by the following term?
Aqua regia
Mention three important uses of nitric acid. Give the properties of the nitric acid involved in its use.
Name the following:
A nitrate which has no water of crystallization.
Give two tests of the following:
NH3
Differentiate between the following pairs based on the odourless gas which turns lime water milky and the criteria given:
Sulphuric acid and Nitric acid (using barium chloride solution)
Give a balanced equation for the following:
Oxidation of carbon with conc. nitric acid.
