Q
Which of the following is function of fluoride flux in soldering process ?
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A
A. It prevents the formation of copper oxide
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B
B. It prevents the formation of chromium oxide or dissolves chromic oxide layer
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C
C. It prevents the flow of material in undesirable area
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D
D. Increase the strength of solder
Correct Answer:
B. B. It prevents the formation of chromium oxide or dissolves chromic oxide layer
