The increasing order of hardness of various kinds of coal is-Lignite lt- Sub-bituminous lt- Bituminous lt- AnthraciteAnthracite lt- Bituminous lt- Sub-bituminous lt- LigniteBituminous lt- Sub-bituminous lt- Anthracite lt- LigniteSub-bituminous lt- Bituminous lt- Lignite lt- Anthracite

The correct option is A Lignite lt; Sub bituminous lt; Bituminous lt; AnthraciteThe increasing order of hardness of various kinds of coal is: Lignite ...

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Standard X

Chemistry

Fractional Distillation and Petrochemicals

The increasin...

Question

The increasing order of hardness of various kinds of coal is:

Lignite < Sub-bituminous < Bituminous < Anthracite

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Anthracite < Bituminous < Sub-bituminous < Lignite

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Bituminous < Sub-bituminous < Anthracite < Lignite

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Sub-bituminous < Bituminous < Lignite < Anthracite

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Solution

The correct option is A Lignite < Sub-bituminous < Bituminous < Anthracite
The increasing order of hardness of various kinds of coal is: Lignite < Sub-Bituminous < Bituminous < Anthracite.
This is also the increasing order of the energy released when they are burnt.

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The increasing order of hardness of various kinds of coal is:

The correct option is A Lignite < Sub-bituminous < Bituminous < AnthraciteThe increasing order of hardness of various kinds of coal is: Lignite < Sub-Bituminous < Bituminous < Anthracite. This is also the increasing order of the energy released when they are burnt.

The correct option is A Lignite < Sub-bituminous < Bituminous < Anthracite
The increasing order of hardness of various kinds of coal is: Lignite < Sub-Bituminous < Bituminous < Anthracite.
This is also the increasing order of the energy released when they are burnt.