Advertisements
Advertisements
प्रश्न
Give the reaction of acid with nitrates. State the conditions under which they react.
Advertisements
उत्तर
Nitrates do not react with dilute acids. Lead nitrate solution reacts with dilute HCl and H2S04 to produce insoluble lead salts.
\[\ce{Pb(NO3)2 + 2HCl -> PbCl2 + 2HNO3}\]
\[\ce{Pb(NO3)2 + H2SO4 -> PbSO4 + 2HNO3}\]
Nitrates when heated with conc. sulphuric acid produce more volatile nitric acid.
\[\ce{KNO3 + H2SO4 →[below 200°C] KHSO4 + HNO3}\]
\[\ce{2KNO3 + H2SO4 ->[above 200^\circ C] K2SO4 + 2HNO3}\]
Both chlorides and nitrates do not react with dilute acids; they react with concentrated acids.
APPEARS IN
संबंधित प्रश्न
Give the names and formulae of two strong acids.
Name one animal whose stings contain formic acid (or methanoic acid).
Why do HCl, H2SO4, HNO3, etc., show acidic character in aqueous solutions while solutions of compounds like C6H12O6 (glucose) and C2H5OH (alcohol) do not show acidic character?
What colour does phenolphthalein indicator turn when added to an alkali (such as sodium hydroxide)?
A white shirt has a yellow stain of curry. When soap is rubbed on this shirt during washing, the yellow stain turns reddish-brown. On rinsing the shirt with plenty of water, the reddish-brown stain turns yellow again.
- Name the natural indicator present in curry stain.
- Explain the changes in colour of this indicator which take place during washing and rinsing the shirt.
- What is the nature of soap (acidic/basic) as shown by the indicator present in curry stain?
What is the common name of water soluble bases?
Give the appropriate term defined by the statements given below :
The substance that releases hydronium ion as the only positive ion when dissolved in water.
What do you understand by the strength of an acid? On what factors does the strength of an acid depend?
Write a balanced reaction for the following conversions (A, B, C, D)
\[\ce{Fe→[A]FeCl2 →[B]FeCO3→[C]Fe(NO3)2→[D]Fe(OH)2}\]
Name the acid present in lemon.
