What harm occurs if ammonium sulphate and sodium nitrite is not used in accordance with the properties of the soil?

What happens when sodium sulphate is fused with charcoal. Give equation.

Ray optics is based on the assumption that light travels in a straight line. Diffractions observed when light propagates through small apertures/slits or around small objects disproves this assumption. Yet the ray optics assumption is so commonly used in understanding location and several other properties of images in optical instruments. What is the justification?

An aqueous solution of sodium sulphate is electrolysed using inert electrodes. The products formed at the cathode and anode respectively are-

Most of the plants obtain nitrogen from the soil in the form of 1. nitrites and molecular nitrogen 2. nitrates and ammonium salts 3. nitrites and ammonium salts 4. hyponitrites and nitrates

what happens when aqueous solution of sodium succinate are electrolysed using Pt-electrodes.

How is soil polluted by excess use of ammonium sulphate?

According to the recommendations given by WHO/UNICEF. In ORS, what are the quantities of Sodium bicarbonate and Potassium chloride in I litre of water?

What properties of water make it useful as a solvent? What types of compound can it (1) dissolve, and (2) hydrolyse?