Statement:
Coal is a homogeneous substance with fixed chemical formula.

True

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False

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Solution

The correct option is B False
Coal is a heterogeneous mixture of carbon, hydrogen, sulfur, volatile impurities and moisture and is not a homogenous substance.

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Similar questions

Q. Statement I: Chemical formula represents the elements present in a compound.

Statement II: The chemical symbol

CO

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Co

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Which of the following cause a substance to change into an entirely new substance with a new chemical formula?

A substance that is composed of two or more elements, chemically combined with one another in a fixed proportion is called a ____.

Match the following:
$\begin{matrix} 1. C h e m i c a l c h a n g e & i . W a t e r 2. P h y s i c a l c h a n g e & i i . S u g a r i n w a t e r 3. P u r e s u b s t a n c e & i i i . C o o k i n g f o o d 4. H o m o g e n e o u s m i x t u r e & i v . M e l t i n g o f i c e \end{matrix}$

Q. A substance that is composed of two or more elements, chemically combined with one another in a fixed proportion of mass is called ___

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Statement:Coal is a homogeneous substance with fixed chemical formula.

The correct option is B FalseCoal is a heterogeneous mixture of carbon, hydrogen, sulfur, volatile impurities and moisture and is not a homogenous substance.

Statement:
Coal is a homogeneous substance with fixed chemical formula.

The correct option is B False
Coal is a heterogeneous mixture of carbon, hydrogen, sulfur, volatile impurities and moisture and is not a homogenous substance.