When a mixture of vapours of phenol and hydrogen is passed over nickel catalyst at 433 K, the product obtained is

A metal has $$\mathrm{BCC}$$ structure with edge length of unit cell $$400 \mathrm{~pm}$$. Density or metal is $$4 \mathrm{~g} \mathrm{~cm}^{-3}$$. What is molar mass of metal?

Which from the following is the correct relationship between standard Gibbs energy change and standard cell potential?

What type of following solution is obtained from amalgam of mercury with sodium?