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प्रश्न
Arrange the following metals in the increasing order of their reactivities:
Copper, Zinc, Aluminium, and Iron
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उत्तर
Among the following given metals, aluminum is most reactive and copper is least reactive in nature. The reactivity order of the given metals is Al>Zn>Fe>Cu.
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संबंधित प्रश्न
Write the chemical reaction when iron reacts with dilute H2SO4.
Name the metal which has been placed just below copper in the reactivity series.
Complete and balance the following equation:
Na + O2 →
Describe the reaction of potassium with water. Write the equation of the reaction involved.
Write the equation for the reaction of Aluminium with dilute hydrochloric acid.
Name the products formed. Also indicate the physical states of all the substances involved.
Name one metal which displaces copper from copper sulphate solution and one which does not.
An element X forms two oxides XO and XO2. The oxide XO has no action on litmus solution but oxide XO2 turns litmus solution red.
(a) What is the nature of oxide XO?
(b) What is the nature of oxide XO2?
(c) Would you call element X a metal or a non-metal? Give reason for your choice.
(d) Can you give an example of element like X?
Calcium floats over water during the reaction with water. Give reason.
Generally metals react with acids to give salt and hydrogen gas. Which of the following acids does not give hydrogen gas on reacting with metals (except Mn and Mg)?
Tungsten wire is used in electric bulbs.
