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प्रश्न
Silver metal can displace hydrogen gas from nitric acid.
पर्याय
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
State whether the following statement is true or false. In case a statement is false, write the corrected statement.
Iron pipes coated with zinc do not get rusted easily.
Balance the following equation :
Fe + H2O → Fe3O4 + H2
Complete the statement by filling the gaps using appropriate term from the terms given in the bracket.
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
The spoiling of food is a chemical change which is recognized from the generation of certain ______ due to it.
Give an example of the following chemical changes.
A reaction involving
(i) Change of state
(ii) formation of precipitate
Give a chemical test to distinguish between the following gases.
H2 and CO2
Give a word equation for the following reaction.
A compound which on heating shows – colour change from brown to yellow.
Name the following:
The type of change physical or chemical involved – ‘during respiration in human beings’.
Complete the table given below.
| Addition of dil. H2SO4 to zinc | Test for gas evolved |
Higher order Thinking question
A very hot glass on putting in cold water cracks. What does this change indicate?
Which of the following is/are true when milk changes into curd?
- Its state is changed from liquid to semi solid.
- It changes colour.
- It changes taste.
- The change cannot be reversed.
Choose the correct option from below:
