Paper grade bamboo contains about _______________ percent cellulose ?

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Economics of ‘Solvay Process’ depends upon the efficiency of __________________?

A. Carbonating tower B. Ammonia recovery C. Ammonia recovery and size of the plant D. Ammoniation of salt solution...

Penicillin, an antibiotic drug was discovered by__________________?

A. Alexander B. Flaming C. Doctor Zhivago D. None of these...

Chemical formula of ‘salt cake’ is____________________?

A. Na2SO4 B. CaSO4 C. MgSO4 D. BaSO4...

Which of the following is an unsaturated fatty acid ?

A. Lauric acid B. Palmitic acid C. Stearic acid D. Oleic acid...

Metallic soap (e.g. aluminium or calcium salts of fatty acids) can be used_______________________?

A. As a lubricant B. As a rust preventive C. In hard water for cleaning of cloth D. As a foam depressant in distillation column...