Chemical Process
Styrene butadiene rubber (SBR) is

A natural rubber
A synthetic polymer
Another name of silicone rubber
A synthetic monomer

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Chemical Process
Presence of sodium tripolyphosphate (an additive) in synthetic detergent

None of these
Does not allow redeposition of dirt on the cleaned surface
Facilitates its use even in hard water (by sequestering the water-hardening Ca & Mg ions)
Inhibits its corrosive effects

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

Activated carbon can be used for taste & odour control without subsequent filtration
Application of activated carbon reduces the temporary hardness of water
Slow sand filters can remove colour completely
Normally, the turbidity is removed by adding a coagulent prior to sedimentation

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