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Froth Floatation

Egg shell is ...

Question

Egg shell is made up of a chemical. In which of the two ores this chemical is present?

Lime stone :

C a C O_{3}

, Dolomite :

C a C O_{3} . M g C O_{3}

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Lime stone :

C a C O_{3} . M g C O_{3}

, Dolomite :

C a C O_{3}

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Lime stone :

C a_{2} C O_{3}

, Dolomite :

C a_{2} C O_{3} . M g C O_{3}

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None of these

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Solution

The correct option is D Lime stone : $C a C O_{3}$ , Dolomite : $C a C O_{3} . M g C O_{3}$
The main ingredient in eggshells is calcium carbonate. The shell itself is about 95% $C a C O_{3}$ (which is also the main ingredient in sea shells). The remaining 5% includes calcium phosphate and magnesium carbonate and soluble and insoluble proteins. Lime stone : $C a C O_{3}$ , Dolomite : $C a C O_{3} . M g C O_{3}$

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Similar questions

The correct order of increasing thermal stability of $K_{2} C O_{3}, M g C O_{3}, C a C O_{3} a n d B e C O_{3}$ is:

B a C O_{3}, C a C O_{3}, S r C O_{3}

M g C O_{3}

M g C O_{3}, C a C O_{3}, S r C O_{3}

B a C O_{3}

S_{1}

S_{2}

C a C O_{3}

M g C O_{3}

S_{3}

S_{4}

C a C O_{3}

M g C O_{3}

(C a = 40, M g = 24, C = 12, O = 16)

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