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What is the Action of Water on Aluminium ? Write Equation of the Chemical Reaction Involved. - Science

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प्रश्न

What is the action of water on aluminium ? Write equation of the chemical reaction involved.

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उत्तर

Aluminium does not react with cold water. But it reacts with steam to form aluminium oxide and hydrogen gas.
   2Al(s) + 3H2O(g) → Al2O3(s) +  3H2(g)

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पाठ 3: Metals and Non-metals - Exercise 1 [पृष्ठ १३४]

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लखमीर सिंह Chemistry (Science) [English] Class 10
पाठ 3 Metals and Non-metals
Exercise 1 | Q 54.3 | पृष्ठ १३४

संबंधित प्रश्‍न

Metal A has electronic configuration (2, 8, 1) and metal B has (2, 8, 8, 2). Which is more reactive? Why? Identify these metals.


‘E’ is an element which reacts with oxygen to form an oxide E2O. An aqueous solution of E2O turns red litmus blue, so:
i. What is the nature of oxide E2O ?
ii. Write the name of element ‘E’.


The reaction of an iron nail with copper sulphate solution is ........... reaction.

(a) Combination

(b) Displacement

(c) Double displacement

(d) Decomposition


A student added few pieces of aluminium metal to two test tubes A and B containing aqueous solutions of iron sulphate and copper sulphate. In the second part of her experiment, she added iron metal to another test tubes C and D containing aqueous solutions of aluminium sulphate and copper sulphate.

In which test tube or test tubes will she observe colour change? On the basis of this experiment, state which one is the most reactive metal and why.


Why are metals called electropositive elements whereas non-metals are called electronegative elements?


Fill in the following blank with suitable word:

Calcium is a ................. reactive metal than sodium.


Why is white phosphorus kept immersed under water?


What is the action of water on magnesium ? Write equation of the chemical reaction involved.


Name another metal oxide which behaves like aluminium oxide.


What happens when a metal reacts with dilute hydrochloric acid? Explain with the help of an example.


Write the equation for the reaction of Magnesium with dilute hydrochloric acid.

Name the products formed. Also indicate the physical states of all the substances involved.


Write the equation for the reaction of Zinc with dilute hydrochloric acid.

Name the products formed. Also indicate the physical states of all the substances involved.


Write the equation for the reaction of Iron with dilute hydrochloric acid.

Name the products formed. Also indicate the physical states of all the substances involved.


Hydrogen is not a metal but still it has been assigned a place in the reactivity series of metals. Why?


Which non-metal has been placed in the reactivity series of metals?


Metal A burns in air, on heating, to form an oxide A2O3 whereas another metal B burns in air only on strong heating to form an oxide BO. The two oxides A2O3 and BO can react with hydrochloric acid as well as sodium hydroxide solution to form the corresponding salts and water.
(a) What is the nature of oxide A2O3?
(b) What is the nature of oxide BO?
(c) Name one metal like A.
(b) Name one metal like B.


Calcium floats over water during the reaction with water. Give reason.  


Arrange the following metals in the increasing order of their reactivities:

Copper, Zinc, Aluminium, and Iron


Aluminium is used for making cooking utensils. Which of the following properties of aluminium are responsible for the same?

  1. Good thermal conductivity
  2. Good electrical conductivity
  3. Ductility
  4.  High melting point

Which of the following property is not responsible for copper to be used as electrical conduction wires?


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