How do the elements occur in nature ...

How do the elements occur in nature ?

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How do non-metals occur in nature ? How are they extracted//isolated from their natural sources ?

Highly reactive elements occurs in nature in_____state.

Knowledge Check

Which lanthanide element does not occur in nature ?

A

Promethium

B

Ytterbium

C

Samarium

D

Lutetium

Which one of the followig elements occur free in nature?

A

Nitrogen

B

Phosphorus

C

Arsenic

D

Antimony

How many elements are found in nature?

A

`98`

B

`92`

C

`105`

D

`100`

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Highly reactive elements occur in nature in ……. State .

How does magnesium occur in nature? How is magnesium metal obtained by the electrolysis method?

Name some elements that can occur free in nature

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Which of the following elements occur free in nature

PRADEEP-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -ADDITIONAL QUESTIONS (SHORT ANSWER QUESTIONS)

How do the elements occur in nature ?
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Why do some metals occur in the native state?
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Giving appropriate examples (at least three), explain how the reactivi...
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(a) Name the chief form of occurrence of the following in the...
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Predict the modes of occurrence of the following three types of metals...
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All ores are minerals , but all minerals are not ores. Why ?
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How do non-metals occur in nature ? How are they extracted//isolated f...
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What is meant by concentration of ores ?
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Describe magnetic separation method of concentration of ores.
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Describe the principle of froth floatation process.
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Describe the leaching of aluminium ore.
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Write the chemical equations involved in the preparation of p...
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Mention the role of cryolite in the extraction of aluminium.
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Silver ores and native gold have to be leached with metal cya...
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Describe the role of the following : (i) NaCN in the extractio...
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