For melting one tonne of cast iron Options: A . &nbsp700 m³ air is required B . &nbsp20 kg limestone is required C . &nbspone quintal coke is required D . &nbspall the above.

For melting one tonne of cast iron

Question

For melting one tonne of cast iron

Options:

A . 700 m³ air is required

B . 20 kg limestone is required

C . one quintal coke is required

D . all the above.

Answer: Option D
Answer: (d).all the above.

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