Chemical Process
Pick out the false statement pertaining to water treatment.

Sodium sulphate or sodium carbonate do not cause hardness in water
The zeolite water softening process reduces the hardness of water by not more than 50%
Aeration of water is effective in CO₂ removal
Water with pH value less than 7, is acidic

ANSWER DOWNLOAD EXAMIANS APP

Chemical Process
Vulcanisation of rubber

Increases its oil & solvent resistance
Increases its ozone & oxygen reactivity
Decreases its tensile strength
Converts its plasticity into elasticity

ANSWER DOWNLOAD EXAMIANS APP