Question

7. Which mixture is used for welding
(a) Iron and calcium oxide
(b) Calcium oxide and Aluminium
(c) Iron oxide and Aluminium
(d) None of these
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Answer 1

Answer:

(c) Iron oxide and Aluminium

Extra info.

>> Welinding is a process in which two metals are joined.

>> This process iz done using the mixture of iron oxide abd aluminium

>> The reaction between iron oxide and aluminium is called as THERMITE REACTION

Answer 2

Heya....

your answer is....

(c) Iron oxide and Aluminium

hope it helps you:)