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The ratio of Fe_{2}O_{3} and Al by weight, in thermite is abou

Question

The ratio of $F e_{2} O_{3}$ and $A l$ by weight, in thermite is about:

1 : 3

1 : 2

3 : 1

none of the above

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The ratio of

F e_{2} O_{3}

and

A l

by weight, in thermite is about:

14 mins ago

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14 mins ago

Text solutionVerified

Thermite is the mixture of

F e_{2} O_{3}

and

A l

. Due to great affinity of aluminium toward oxygen, it readily combines with oxygen. Hence, Goldsmith used

A l

to reduce metal oxides in extraction. In thermite the ratio of

F e_{2} O_{3}

and

A l

is taken

3 : 1

by weight.

F e_{2} O_{3} + 2 A l \to 2 F e + A l_{2} O_{3}

(2 \times 56 + 3 \times 16 = 160) (2 \times 27 = 54)

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Question Text	The ratio of $F e_{2} O_{3}$ and $A l$ by weight, in thermite is about:
Answer Type	Text solution:1
Upvotes	150