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What Name is Given to Those Metal Oxides Which Show Basic as Well as Acidic Behaviour? - Science

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प्रश्न

What name is given to those metal oxides which show basic as well as acidic behaviour?

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उत्तर

Metal oxides that show basic as well as acidic behaviour are called amphoteric oxides. Aluminium oxide is an example.

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अध्याय 3: Metals and Non-metals - Exercise 1 [पृष्ठ १३२]

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लखमीर सिंग Chemistry (Science) [English] Class 10
अध्याय 3 Metals and Non-metals
Exercise 1 | Q 11 | पृष्ठ १३२

संबंधित प्रश्न

Write equations for the reactions of calcium and potassium with water.


Which gas is produced when dilute hydrochloric acid is added to a reactive metal? 


Write the chemical reaction when iron reacts with dilute H2SO4.


Write the electron-dot structures for sodium, oxygen and magnesium.


Give reasons why copper is used to make hot water tanks and not steel (an alloy of iron).


From amongst the metals sodium, calcium aluminium, copper and magnesium, name the metal:
(i) which reacts with water only on boiling, and
(ii) another which does not react even with steam.


Give reason for the following:
Blue colour of copper sulphate solution is destroyed when iron filings are added to it.


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


Complete and balance the following equation:


What happens when a rod of zinc metal is dipped into a solution of copper sulphate? Give chemical equation of the reaction involved.


Why does aluminium not react with water under ordinary conditions?


Describe the reaction of potassium with water. Write the equation of the reaction involved.


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


Name another metal oxide which behaves like aluminium oxide.


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.


Name one metal more reactive and another less reactive than hydrogen.


The elements whose oxides can turn litmus solution blue are:
(a) carbon and sulphur
(b) sodium and carbon
(c) potassium and magnesium
(d) magnesium and sulphur


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


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?


Metals are generally hard. Which of the following metals is an exception and can be cut with a knife?


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