Which of the following is the only liquid metal?
Sulphur
Iron
Mercury
Aluminium
Mercury is the only metal which is liquid at room temperature.
Which of the following are conductors and which are insulators? Sulphur, Silver, Copper, Cotton, Aluminium, Air, Nichrome, Graphite, Paper, Porcelain, Mercury, Mica, Bakelite, Polythene, Maganin.