Question

A pipce of metal floats on mercuary the cofdicient of volume expansion of the metal and mercuary

Answer 1

When a strip of red-brown metal X is placed in a colourless salt solution YNO3 then metal Y is set free and a blue coloured salt solution X(NO3)2 is formed. The liberated metal Y forms a shining white deposit on the strip of metal X.

(a) What do you think metal X is ?

(b) Name the salt YNO3.

(c) What could be metal Y ?

(d) Name the salt X(NO3)2.

(e) What type of reaction takes place between metal X and salt solution YNO3 ?