Solder is an alloy of
[amp_mcq option1=”Cu and Sn.” option2=”Fe and Zn.” option3=”Pb and Sn.” option4=”Ag and Zn.” correct=”option3″]
This question was previously asked in
UPSC NDA-1 – 2021
Solder is an alloy of
[amp_mcq option1=”Cu and Sn.” option2=”Fe and Zn.” option3=”Pb and Sn.” option4=”Ag and Zn.” correct=”option3″]