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Calcination

As per the gi...

Question

As per the given sequence the $(P)$ and $(N)$ are respectively:

C a (O H)_{2}

and

C a_{2} S i O_{4}

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M g (O H)_{2}

and

C a_{2} S i_{2} O_{4}

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C a C O_{3}

and

C a O

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M g C O_{3}

and

C a O

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Solution

The correct option is B $M g (O H)_{2}$ and $C a_{2} S i_{2} O_{4}$
For P:
Sea water contains $M g C l_{2}$ . Process of extraction of Mg from sea water is known as Dow sea water. In this process slaked lime is use and $M g (O H)_{2}$ is extracted.
For N:
Dolomite is $M g C O_{3} . C a C O_{3}$ is a Mg ore and given process is Pidgeon process. In this process calcined mixture of dolomite and powder ferro-silicon (Fe/Si) is heated and Mg is vaporized.
Reaction:
$2 M g O + 2 C a O + S i \to 2 M g + 2 C a O . S i O_{2}$ .

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Similar questions

Q. A sample containing only

C a C O_{3}

and

M g C O_{3}

is ignited to

C a O

and

M g O

. The mixture of oxides produced weight exactly half as much as the original sample. The mass percentages of

C a C O_{3}

and

M g C O_{3}

in the sample are respectively :

A sample containing only caco3 and Mgco3 is ignited to CaO and Mgo . The mixture of oxides produced weight exactly half as much as the original sample .

Calculate the percentage of caco3 and mgco3 in the sample

Following reaction is used to remove temporary hardness which is due to dissolved bicarbonates of

C a^{2 +}

and

M g^{2 +}

C a (H C O_{3})_{2} + C a (O H)_{2} \to 2 C a C O_{3} ↓ + 2 H_{2} O

Actually lime (

C a O

) is added which in

H_{2} O

forms

C a (O H)_{2}

and precipitates

C a C O_{3}

C a O + H_{2} O \to C a (O H)_{2}

10

L of hard water requires

0.56

g of

C a O

, temporary hardness of

C a C O_{3}

x \times 10^{2}

ppm. Find

x

Q. The maximum amount of

C a C O_{3}

that can be obtained from 4 g of calcium as per the sequence of reaction is:

C a \to C a O \to C a C O_{3}

Q. Find the number of basic flux from the given compounds :

(

S i O_{2}, M g O, C a O, F e O, B_{2} O_{3}, C a C O_{3}, M g C O_{3}

)

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As per the given sequence the (P) and (N) are respectively:

As per the given sequence the $(P)$ and $(N)$ are respectively: