Which one of the following scrap metal cannot be separated by magnetic separation ?
(a) nickel (b) cobalt (c) chromium (d) steel
Which one of the following scrap metals cannot be separated by magnetic separation?
Which of the following is not attracted by a magnet ?
(a) steel
(b) cobalt
(c) brass
(d) nickel
Which of the following is not a magnetic material?(a) gold(b) nickel(c) iron(d) cobalt
One of the following is not used for electroplating metal articles. This one is : (a) nickel (b) chromium (c) sodium (d) silver