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.
Calcium nitrate [ small amount __________ in excess __________ ]
उत्तर
Calcium nitrate :
a. with sodium hydroxide :
- \[\ce{Ca(NO3)2 ->[NaOH] Ca(OH)2 + NaNO3}\]
- White curdy ppt. is insoluble in excess of NaOH.
b. With ammonium hydroxide :
- \[\ce{Ca(NO3)2 ->[NH4OH] Ca(OH)2 + NH4NO3}\]
- No precipitation of Ca(OH)2 even in excess of ammonium hydroxide.
APPEARS IN
संबंधित प्रश्न
Correct the following, if required:
Constant boiling nitric acid contains 80% nitric acid by weight.
Name a nitrate of metal which on heating does not give nitrogen dioxide
Name a nitrate which on heating leaves no residue behind.
From the following list of substances, choose one substance in each case which matches the description given below:
Ammonium nitrate, calcium hydrogen carbonate, copper carbonate, lead nitrate, potassium nitrate, sodium carbonate, sodium hydrogen carbonate, zinc carbonate.
A nitrate which on heating decomposes into dinitrogen oxide [nitrous oxide] and steam.
Fill in the blank:
------------ (iron / copper) become passive in concentrated nitric acid
How does nitric acid formed in the atmosphere?
Mention three important uses of nitric acid. Give the property of nitric acid involved in the use.
Name the following:
A nitrate which has no water of crystallization.
Give two tests of the following:
NH3
Give a balanced equation for the following:
Oxidation of carbon with conc. Nitric acid.
