Advertisements
Advertisements
प्रश्न
Give reason for the following:
Commercial nitric acid is yellow in colour, but when it is diluted with water, it turns colourless.
Advertisements
उत्तर
Commercial nitric acid is yellow in colour because of presence of nitrogen dioxide but when it is diluted with water, it turns colourless because nitrogen dioxide get dissolved in water.
APPEARS IN
संबंधित प्रश्न
What is the type of salt formed when the reactants are heated at a suitable temperature for the preparation of Nitric acid?
Give two chemical equations for the following:
Nitric acid showing as acidic character.
Name the Following:
Salt used in the laboratory to prepare nitric acid
Give reason for the following :
Nitric acid usually does not yield hydrogen from acids.
What happens when (Given balanced equation) :
Sulphar is added to hot and conc. HNO3?
Complete and balance the following equation :
Pt + HNO3 + HCl → ___________
Explain the following:
Concentrated nitric acid appears yellow when it is left standing in a glass bottle.
Write a balanced equation for following :
Reaction of ammonia with nitric acid
A dilute acid B does not normally give hydrogen when reacted with metals but does give a gas when it reacts with copper. Identify B. Write the equation with copper.
From the following list of substances, choose one substance in the 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 Substance that gives off only oxygen when heated.
