Consider the following statements about Mica-1- Mica minerals occur in igneous and sedimentary rocks but doesn-t occur in Metamorphic rocks-2- It is used as an insulating material in electrical industry-3- In powder form- it is used in lubricating oils and decorative wall papers-4- India is the most important mica producing country in the world-Which of the statements given above are correct-

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Standard VII

Geography

Minerals

Consider the ...

Question

Consider the following statements about Mica.

Which of the statements given above are correct?

Only 1, 2, 3

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Only 2, 3, 4

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Only 1, 2, 4

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All of the above

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Solution

The correct option is B
Only 2, 3, 4

The term ‘mica’ covers a large group of rock-forming mineral. Owing to its excellent dielectric strength, low loss power factor and insulating properties, mica is one of the indispensable minerals used in electrical and electronics industry. Mica minerals occur in igneous, sedimentary and metamorphic rocks formed under different geological conditions.

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Consider the following statements about Mica. Which of the statements given above are correct?

Consider the following statements about Mica.

Which of the statements given above are correct?