The compressive strength of cement should not be less than about 110Kg/cm² after three days & not less than 170Kg/cm² after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm²/gm.

Chemical Process
The compressive strength of cement should not be less than about 110Kg/cm² after three days & not less than 170Kg/cm² after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm²/gm.

4000

800

8500

1600

4000

800

8500

1600

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Chemical Process
Very fine suspended and colloidal impurities are removed from water by a process called

Softening

Disinfection

Sedimentation

Coagulation

Softening

Disinfection

Sedimentation

Coagulation

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Chemical Process
Neoprene is chemically known as

Polybutadiene

Styrene butadiene rubber (SBR)

Polyurathane

Polychloroprene

Polybutadiene

Styrene butadiene rubber (SBR)

Polyurathane

Polychloroprene

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Chemical Process
Sea weeds are an important source of

Chlorine

Bromine

Iodine

Fluorine

Chlorine

Bromine

Iodine

Fluorine

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Chemical Process
The purpose of tanning in leather industry is to

Smoothen the leather

Make it flexible

Stiffen the leather

Impart water resistance

Smoothen the leather

Make it flexible

Stiffen the leather

Impart water resistance

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

Cause cholesterol build up and blood clotting

Always contain some amount of nickel (as their complete removal is very difficult)

Are prone to rancid oxidation

Have affinity to retain harmful sulphur compounds

Cause cholesterol build up and blood clotting

Always contain some amount of nickel (as their complete removal is very difficult)

Are prone to rancid oxidation

Have affinity to retain harmful sulphur compounds

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Chemical Process

Chemical Process The compressive strength of cement should not be less than about 110Kg/cm² after three days & not less than 170Kg/cm² after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm²/gm.

Chemical Process Very fine suspended and colloidal impurities are removed from water by a process called

Chemical Process Neoprene is chemically known as

Chemical Process Sea weeds are an important source of

Chemical Process The purpose of tanning in leather industry is to

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

Chemical Process
The compressive strength of cement should not be less than about 110Kg/cm² after three days & not less than 170Kg/cm² after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm²/gm.

Chemical Process
Very fine suspended and colloidal impurities are removed from water by a process called

Chemical Process
Neoprene is chemically known as

Chemical Process
Sea weeds are an important source of

Chemical Process
The purpose of tanning in leather industry is to

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