SiO 2-2 Mg heat -A- Si- 2 MgOB- Si- 3 MgOC- Si- MnOD- Si- MgO

The correct option is A Si, 2MgOSiO_2 + 2Mg Si + 2MgO ...

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Byju's Answer

Standard X

Mathematics

Sum of N Terms of an AP

SiO 2+2 Mg he...

Question

Si $O_{2}$ + 2Mg $h e a t - - \to$ _ + _

Si, 2MgO

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Si, 3MgO

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Si, MnO

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Si, MgO

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Solution

The correct option is A Si, 2MgO
Si $O_{2}$ + 2Mg $h e a t - - \to$ Si + 2MgO

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Similar questions

Q. Assertion :

M g O

is reduced by

S i

whereas

S i O_{2}

can be reduced by

M g

Reason:

S i

reduces

M g O

at high temperature

M g

is more electropositive than

S i

and thus reduces

S i O_{2}

Si of high purity to be used in semiconductor can be prepared by following methods :

I. $S i O_{2} + 2 C \to S i + 2 C O$

II. $S i + 2 C l_{2} \to S i C l_{4}$

$S i C l_{4} + 2 M g \to S i + 2 M g C l_{2}$

Better method is :

S i O_{2} + 3 C ⟶ 2 C O +

________

Q. Values of heats of formation for

{S i O}_{2}

and

M g O

are

- 48.4

and

- 34.7 K J

respectively. The heat of the reaction

2 M g + {S i O}_{2} \to 2 M g O + S i

is:

Is it true that under certain conditions, Mg can reduce SiO₂ and Si can reduce MgO? What are those conditions?

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SiO2 + 2Mg heat−−→ ___ + ___

The correct option is A Si, 2MgOSiO2 + 2Mg heat−−→ Si + 2MgO

Si $O_{2}$ + 2Mg $h e a t - - \to$ _ + _

The correct option is A Si, 2MgO
Si $O_{2}$ + 2Mg $h e a t - - \to$ Si + 2MgO