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प्रश्न
Name the Following:
Gas obtained by treating manganese with 1% nirtric acid.
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उत्तर
Hydrogen gas is obtained by treating manganese with 1% nitric acid.
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संबंधित प्रश्न
Name a solution which absorbs nitric oxide.
Name the Following:
Two coloured nitrates.
Why is the temperature maintained at 200°C in the above reaction?
What do you observe when?
Concentrated nitric acid is dropped on a hot surface?
Give two chemical tests to distinguish between dilute nitric acid and hydrochloric acid.
Fill in the blank with appropriate word/words.
98% nitric acid is obtained by distilling 68% nitric acid with ________ under ______
Name the compounds required for the laboratory preparation of nitric acid.
X, Y and Z are three crystalline solids that are soluble in water and have a 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.
Write the equation for the reaction of dilute nitric acid with copper.
Explain why nitric acid is kept in a reagent bottle for a long time.
