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महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

Write name. Molecular formula of the common ore of aluminium. - Science and Technology 1

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प्रश्न

Write name.

Molecular formula of the common ore of aluminium.

एका वाक्यात उत्तर

उत्तर

 Bauxite (Al2O3.2H2O) is the common ore of aluminium.

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पाठ 8: Metallurgy - Exercises [पृष्ठ १०८]

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बालभारती Science and Technology 1 [English] 10 Standard SSC Maharashtra State Board
पाठ 8 Metallurgy
Exercises | Q 1.2 | पृष्ठ १०८

संबंधित प्रश्‍न

Mark ‘T’ if the statement is true and ‘F’ if it is false.

Copper displaces zinc from zinc sulphate solution. ( )


Explain how, a reduction reaction of aluminium can be used for welding cracked machine parts of iron. Write a chemical equation for the reaction involved.


What is an alloy? How is an alloy made?


Give reasons 

Gold is mixed with copper and nickel.  


Write ‘true’ or ‘false’ for the following statement. 

Iodine acts as an antiseptic in the form of a tincture of iodine. 


State two important uses of following metal 

 Uses of aluminium


State the position of the following in the periodic table:

Aluminium


Take an element from an alkali metal and one from an alkaline earth metal and write an equation for their action with:

Oxygen


Why are alkali metals kept in kerosene oil?


Write scientific reason.

Anodes need to be replaced from time to time during the electrolysis of alumina.


When a copper coin is dipped in silver nitrate solution, a glitter appears on the coin after some time. Why does this happen? Write the chemical equation.


Give a reason why iron objects rust easily but the iron pillar at Qutab Minar has not rusted over the years.


An element which is always lustrous, malleable and ductile is ______.


Assertion: Mercury is solid in room temperature.

Reason: Mercury is a non-metal.


The most abundant metal in the earth’s crust is ____________.


Which of the following metals are obtained by electrolysis of their chlorides in molten state?

  1. Na
  2. Ca
  3. Fe
  4. Cu

______ is the first scientist who used the term element.


A doctor prescribed a tablet to a patient suffering from iron deficiency. The tablet does not look like iron. Explain.


Sodium is a hard metal. 


Why do metals appear shiny?


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