Solid State — Chemistry STD 12 — Question

The pH of drain cleaner is equal to ………….

The substance which is oxidised is a …………. agent and the one which is reduced is an …………. agent.

When phosphorous trichloridie is hydrolysed with cold water it gives ………….

…………. was first invented by Sir Alec Jeifry.

…………… is used for water proofing and textiles.

…………… is the appearance of an electrical potential across the sides of the crystal, when it is subjected to mechanical stress.

……… is defined as the resistance of an electrolyte confined between two electrodes having unit cross sectional area and separated by a unit distance

There are …………… primitive crystal systems.

…………. theory does not explain the behaviour of acids and base in non aqueous solvents.