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Hydrogen is Not a Metal but Still It Has Been Assigned a Place in the Reactivity Series of Metals. Why? - Science

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प्रश्न

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

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उत्तर

Hydrogen is not a metal but it has been assigned a place in the reactivity series of metals because like metals, it also loses electrons and forms positive ions, H+.

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अध्याय 3: Metals and Non-metals - Exercise 1 [पृष्ठ १३५]

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लखमीर सिंग Chemistry (Science) [English] Class 10
अध्याय 3 Metals and Non-metals
Exercise 1 | Q 64.2 | पृष्ठ १३५

संबंधित प्रश्न

.................... liberated when acetic acid reacts with sodium metal.
(a) Hydrogen
(b) Chlorine
(c) Oxygen
(d) Nitrogen


Why is sodium kept immersed in kerosene oil?


Write the chemical reaction when iron reacts with dilute H2SO4.


What would you observe when zinc is added to a solution of iron (II) sulphate? Write the chemical reaction that takes place.


You must have seen tarnished copper vessels being cleaned with lemon or tamarind juice. Explain why these sour substances are effective in cleaning the vessels.


Differentiate between metal and non-metal on the basis of their chemical properties.


What will happen if a strip of copper is kept immersed in a solution of silver nitrate (AgNO3)?


Explain why, the surface of some metals acquires a dull appearance when exposed to air for a long time.


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


Explain why, metals usually do not liberate hydrogen gas with dilute nitric acid.


The least reactive metal among the following is:
(a) sodium
(b) silver
(c) copper
(d) lead


The metals which can produce amphoteric oxides are:
(a) sodium and aluminium
(b) zinc and potassium
(c) calcium and sodium
(d) aluminium and zinc


An element E reacts with water to form a solution which turns phenolphthalein solution pink. The element E is most likely to be:
(a) S
(b) Ca
(c) C
(d) Ag


Name a metal which It does not react with any physical state of water?


Write a chemical equation to illustrate the use of aluminium for joining cracked railway lines.


Rewrite the following statement by selecting the correct option.
A solution of Al2(SO4)3 in water is _____________.


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.


Tungsten wire is used in electric bulbs.


Why is acidified water considered to be a good conductor of electricity?


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