QuestionKart - Questions

cds- Question :

In which one of the following is higher percentage of carbon found?

A :

Lignite coal

B :

Peat coal

C :

Bituminous coal

D :

Anthracite coal

cds- Question :

Commercial vulcanization of rubber involves

A :

sulphur

B :

carbon

C :

phosphorus

D :

selenium

cds- Question :

The cleaning of dirty clothes by soaps and detergents is due to a type of molecules called surfactants, which are present in soaps and detergents. The surfactant molecules remove the dirt by

A :

making the cloth slippery

B :

producing some gases between the dirt and the cloth

C :

dissolving the dirt

D :

forming some aggregates of themselves and take away the dirt in the core of the aggregates

cds- Question :

Which among the following are the most important raw materials for manufacturing of soap?

A :

Fats and Caustic Alkali

B :

Fats and Potash

C :

Fats and Acid

D :

‘Vegetable oil and Potash

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