मराठी

How do metals react with hydrogen? Explain with an example.

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प्रश्न

How do metals react with hydrogen? Explain with an example.

स्पष्ट करा
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उत्तर

Metals generally do not react with hydrogen. But some reactive metals like sodium, potassium, calcium, and magnesium can force the hydrogen atom to accept electrons from them and form salt-like ionic solid compounds called metal hydrides.

When hydrogen gas is passed over heated sodium, then sodium hydride is formed.

\[\ce{\underset{(A metal)}{\underset{Sodium}{2Na_{(s)}}} + \underset{Hydrogen}{H2_{(g)}} -> \underset{(Ionic hydride)}{\underset{Sodium hydride}{2NaH_{(s)}}}}\]

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पाठ 3: Metals and Non-metals - Exercise 1 [पृष्ठ १६६]

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लखमीर सिंह Chemistry Part 2 [English] Class 10
पाठ 3 Metals and Non-metals
Exercise 1 | Q 43. (a) | पृष्ठ १६६

संबंधित प्रश्‍न

_________ solution is blue in colour.
(a) CuSO4
(b) FeSO4
(c) ZnSO4
(d) Al2(SO4)3


Iron is
(a) More reactive than zinc
(b) More reactive than aluminium
(c) Less reactive than copper
(d) Less reactive than aluminium


Food cans are coated with tin and not with zinc because ______.


The solution of Aluminium sulphate in water is .....................

(a) Green

(b) Colourless

(c) Pink

(d) Blue


Which of the two metals is more reactive?

Copper or silver


Which of the following elements would yield an acidic oxide?

Na, S, C, K, H


What is the nature of the oxide Na2O? What happens when it is dissolved in water? Write the chemical equation of the reaction involved.


Name two metals (other than zinc and iron) which can displace hydrogen from dilute hydrochloric acid?


What is the action of water on magnesium? Write equations of the chemical reactions involved.


What happens when calcium reacts with water? Write the chemical equation of the reaction of calcium with water.


Write the equation for the reaction of:

Magnesium with dilute hydrochloric acid.

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


An acidic oxide is produced by the element ______.


The metals which can produce amphoteric oxides are ______.


Which of the following reactions will not occur? Why not?

  1. \[\ce{MgSO4_{(aq)} + Cu_{(s)} -> CuSO4_{(aq)} + Mg_{(s)}}\]
  2. \[\ce{CuSO4_{(aq)} + Fe_{(s)} -> FeSO4_{(aq)} + Cu_{(s)}}\]
  3. \[\ce{MgSO4_{(aq)} + Fe_{(s)} -> FeSO4_{(aq)} + Mg_{(s)}}\]

Write the chemical equation for the following reaction:
Manganese dioxide is heated with aluminum powder.


Which property of metals is used for making bells and strings of musical instruments like Sitar and Violin?


An element X is soft and can be cut with a knife. This is very reactive to air and cannot be kept open in the air. It reacts vigorously with water. Identify the element from the following.


A cable manufacturing unit tested few elements on the basisof their physical properties.

Properties W X Y Z
Malleable Yes No No Yes
Ductile Yes No No Yes
Electrical conductivity Yes Yes Yes No
Melting Point High Low Low High

Which of the above elements were dicarded for usage by the company?


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


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