EASY
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The metal that is most prevalent in the earth's crust is ?

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Important Questions on Matter and its States

MEDIUM
Science & Pedagogy>Chemistry>Matter and its States>Metallurgy
Which of the following metals can be extracted through alkali leaching technique?
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Science & Pedagogy>Chemistry>Matter and its States>Metallurgy
Isotopes differ in _____.
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Science & Pedagogy>Chemistry>Matter and its States>Metallurgy
The difference between Isotopes of an element is due to the presence of which different numbers?
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Science & Pedagogy>Chemistry>Matter and its States>Metallurgy

Give the appropriate term defined by the statement given below:

The process by which certain ores, specially carbonates, are converted to oxides in the absence of air.

MEDIUM
Science & Pedagogy>Chemistry>Matter and its States>Metallurgy
MgCO3  →∆MgO+ CO2. Which reactiton is this?
MEDIUM
Science & Pedagogy>Chemistry>Matter and its States>Metallurgy
Which of the reaction is suitable for concentrating ore by leaching process?
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Science & Pedagogy>Chemistry>Matter and its States>Metallurgy
Which among the following is the saturated hydrocarbon? 
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Science & Pedagogy>Chemistry>Matter and its States>Metallurgy
Which of the following is an example of roasting?
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Science & Pedagogy>Chemistry>Matter and its States>Metallurgy

Give one phrase for the following statement:

The process by which sulphide ore is concentrated.

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Science & Pedagogy>Chemistry>Matter and its States>Metallurgy
Among K, Mg, Au and Cu, the one which is extracted by heating its ore in air is
 
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Science & Pedagogy>Chemistry>Matter and its States>Metallurgy
The process of heating some solid material or a substance in a controlled environment.and it is done to bring about some change in the substance physical or chemical constitution. These process is known as?  
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Science & Pedagogy>Chemistry>Matter and its States>Metallurgy
The highly reactive metals such as Sodium, Potassium, Magnesium, and others are removed by which of the following?
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Science & Pedagogy>Chemistry>Matter and its States>Metallurgy
Which of the following method is used for the desilverization of lead?
MEDIUM
Science & Pedagogy>Chemistry>Matter and its States>Metallurgy
From the manufacturing processes given below, state which of the following does not use a catalyst:
MEDIUM
Science & Pedagogy>Chemistry>Matter and its States>Metallurgy
Which one of the following is not the purpose of full annealing?
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Science & Pedagogy>Chemistry>Matter and its States>Metallurgy
Miller and Wohlwill process are used for refining of which of the following metal?
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Science & Pedagogy>Chemistry>Matter and its States>Metallurgy
Which of the following method is used to convert ore into oxide?
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Science & Pedagogy>Chemistry>Matter and its States>Metallurgy
A sulphide ore is converted into metal oxide by the process of :
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Science & Pedagogy>Chemistry>Matter and its States>Metallurgy
Iron is obtained by the _____.
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Science & Pedagogy>Chemistry>Matter and its States>Metallurgy

Study the following statements about bronze:

I. It is an element like aluminium, iron and copper.
II. It is made by melting copper and tin in a furnace.
III. Tribal people have been using bronze since thousands of years.
IV. The objects made of bronze are lighter but much stronger than those made of aluminium.

The correct statements are: