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प्रश्न
What happen when (Given balanced equation):
Limestone reacts with nitric acid?
उत्तर
When limestone reacts with nitric acid-
\[\ce{CaCO3 + 2HNO3 -> Ca(NO3)2 + H2O(I) + CO2}\]
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संबंधित प्रश्न
The chemical used in the brown ring test is ______.
Give reason for the following:
Nitric acid is used in purification of gold.
What do you observe when?
Hydrogen sulphide is bubbled through conc. HNO3?
What do you observe when?
Scrap zinc is heated with conc. HNO3?
Choose the correct answer from the option given below :
When treated with nitric acid which of the following liberate hydrogen?
Give reason for the following:
Commercial concentrated nitric acid is yellow in colour, but when it is dilute with water, it turns colourless.
Give one chemical test for nitric acid.
Name the product, catalyst and approximate temperature maintained in Ostwald's process. How is the temperature maintained in the Ostwald's process?
Why does pure nitric acid take on a yellowish brown colour when exposed to light?
Account for the yellow colour that appears in concentrated nitric acid when it is left standing in an ordinary glass bottle.
X, Y, and Z are three crystalline solids that are soluble in water and have common anion.
To help you to identify X, Y and Z, you are provided with the following experimental observations. Copy and complete the corresponding inferences in (a) to (e).
- A reddish-brown gas is obtained when X, Y, and Z are separately warmed with concentrated sulphuric acid and copper turning added to the mixture.
INFERENCE 1: The common anion is the ______ ion. - When X is heated, it melts and gives off only one gas which re-lights a glowing splint.
INFERENCE 2: The cation in X is either ______ or ______. - The action of heat on Y produces a reddish-brown gas and yellow residue which fuses with a glass of the test tube.
INFERENCE 3: The metal ion present in Y is the ______ ion. - When Z is heated, it leaves no residue. Warming Z with sodium hydroxide solution liberates a gas which turns moist red litmus paper blue.
INFERENCE 4: Z contains the ______ cation. - Write the equations for the following reactions:
- X and concentrated sulphuric acid (below 200°C). (One equation only for either of the cations given in INFERENCE 2)
- The action of heat on Y.
- Concentrated nitric acid is added to copper turnings kept in a beaker.
