Question

For making good quality mirrors, plates of float glass are used. These are obtained by floating molten glass over a liquid metal which does not solidify before glass. The metal used can be (a) tin(b) sodium(c) magnesium(d) mercury

Answer 1

For making good quality mirrors, plates of float glass are used. These are obtained by floating molten glass over a liquid metal which odes not solidify before glass. The metal used can be?

(1) Mercury (2) Tin (3) Magnesium (4) Sodium

Answer: Mercury