What is the carbon content of the peat coal?

20%-30%

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30%-45%

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40%-60%

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70%-90%

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Solution

The correct option is B 30%-45%
Peat is the first stage of transformation of wood into coal and contains 30% to 45% carbon, sufficient volatile matter and lot of moisture. Its heating capacity is low and normally used as domestic fuel.

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Q. The marks obtained by 40 students of a class are given below :

80, 10, 30, 70, 60, 50, 50, 40, 40, 20, 40, 90, 50, 30, 70, 10, 60, 50, 20, 70, 70, 30, 80, 40, 20, 80, 90,

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Q. The marks obtained by 40 students of a class are given below :

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How many students obtained marks below

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The marks obtained by $40$ students of a class are given below :
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What is the carbon content of the peat coal?

The correct option is B 30%-45%Peat is the first stage of transformation of wood into coal and contains 30% to 45% carbon, sufficient volatile matter and lot of moisture. Its heating capacity is low and normally used as domestic fuel.

The correct option is B 30%-45%
Peat is the first stage of transformation of wood into coal and contains 30% to 45% carbon, sufficient volatile matter and lot of moisture. Its heating capacity is low and normally used as domestic fuel.