Question

1) lead sulphide reacts with hydrogen peroxide to form _____________
2) the metal present in chlorophyll is ______________
3) electrolysis of molten $KCl.MgCl_2.6H_2O$ gives ________ and __________
4) Lithium reacts with nitrogen to form ___________

Answer 1

Answer:

1. Lead sulfide (PbS) reacts with hydrogen peroxide ( H2O2) and produce lead sulfate (PbSO4) and water as products. This reaction is a redox reaction. ... PbS is a black precipitate and PbSO4 is a white precipitate.

2. Chlorophyll a contains a magnesium ion encased in a large ring structure known as a chlorin.

3. Electrolysis of molten KCl,At anode, 2Cl^-\rightarrow Cl_2+2e at c.

4. Lithium Nitride (Li3N) which is stable