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प्रश्न
Silver metal can displace hydrogen gas from nitric acid.
विकल्प
True
False
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उत्तर
False
Correct statement: In the activity series, any metals that are below hydrogen will not react with HNO3.
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संबंधित प्रश्न
Write the missing reactants and products and balance the equations.
................+ HCI `→` NaCI + `"H"_2"O"` + .........................
Explain the following reaction with one suitable example of Double decomposition reaction.
Give an example of a reaction where the following are involved:
Solution
Write the chemical reaction where the following changes are observed.
Colour change is noticed
State the original colour of the following substance and colour of residue obtained after heating.
Lead nitrate
Give a chemical test to distinguish between the following gases.
NH3 and HCl
Complete the table given below.
| Heat on ammonium dichromate | Name of neutral gas evolved |
Complete the table given below.
| Heat on Zinc nitrate | Colour of residue |
Heat may evolve or be absorbed during a ______ change.
Assertion (A): Cutting paper into very small pieces is an irreversible change.
Reason (R): Physical changes are always reversible.
