Chemical Process
Wet chlorine gas produced during electrolysis of brine is dehydrated by

Passing it through a bed of diatomaceous earth
None of these
Spraying 66° Be H₂SO₄ counter current to the flow of the gas
Passing it through a bed of silica gel

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Chemical Process
Nylon 66 is so named because the

Number of carbon atoms between two nitrogen atoms are 6
Number of nitrogen atoms between two carbon atoms are 6
Average degree of polymerisation of the polymer is 1966
Polymer was first synthesised in 1966

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Chemical Process
Oils are partially hydrogenated (not fully) to manufacture vanaspati, because fully saturated solidified oils

Always contain some amount of nickel (as their complete removal is very difficult)
Have affinity to retain harmful sulphur compounds
Cause cholesterol build up and blood clotting
Are prone to rancid oxidation

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