The attractive interactions between cations and mobile electrons in metallic solid is called

Identify weak field ligand from following.

What is the value of spin only magnetic moment for $\mathrm{Cu}^{2+}$ in BM?

Identify role of glycerol in following reaction.

$$ 2 \mathrm{H}_2 \mathrm{O}_{2(\ell)} \xrightarrow{\text { glycerol }} 2 \mathrm{H}_2 \mathrm{O}_{(\ell)}+\mathrm{O}_{2(g)} $$