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प्रश्न
Write a balanced equation for the following:
Iron reacts with dil. HCl
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उत्तर
Fe +2 HC l → FeCl2 + H2
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संबंधित प्रश्न
From the knowledge of activity series, name a metal which shows the following properties:
It forms a base which is insoluble in water.
Hydrogen can be prepared with the metal zinc by using: alkali
Give an equation.
Choose the correct option:
Hydrogen is evolved by the action of cold dil. HNO3 on
Which metal is preferred for collecting hydrogen from:
Write the balanced equation
Hot water
Write a balanced equation for the reaction named metal with (i) boiling water (ii) steam.
When hydrogen is passed over a black solid compound A, the products are a 'colorless liquid' and a 'reddish-brown metal B'.
Substance B is divided into two parts each placed in separate test tubes.
Dilute HCl is added to one part of substance B and dilute HNO3 to the other.
- Name the substances A and B.
- Give two tests for the colourless liquid formed in the experiment.
- What happens to substance A when it reacts with hydrogen? Give reasons for your answer.
- Write an equation for the reaction between hydrogen and substance A.
- Is there any reaction between substance B and dilute hydrochloric acid? Give reasons for your answer.
Correct the following statement:
Conc. H2SO4 reacts with zinc to liberate hydrogen.
What do you observe when dilute sulphuric acid is added to Zinc granules.
State why hydrogen is not prepared in the laboratory by the action of lead with dilute hydrochloric acid.
‘Magnesium reacts with very dilute nitric acid at low temperatures liberating hydrogen.’ Give reasons.
