The residue obtained after the crystallization of sugar from concentrated sugar cane juice is called__________________?
A. Mother liquor B. Filterate C. Extract D. Molasses
Chemistry MCQs
The process of fermentation of starch involve many enzymes the sequence of enzymes used are____________________?
A. Diastase-maltase-zymase B. Zymase-maltase-diastase C. Maltase-diastase-zymase D. Diastase-zymase-maltase
K2Cr2O7/H2SO4 generate____________________?
A. Oxygen B. Hydrogen C. Nascent oxygen[O] D. Nascent hydrogen[H]
Which alcohol will undergo elimination reaction to give alkene in the presence of acidic potassium dichromate ?
A. Primary alcohol B. Secondary alcohol C. Tertiary alcohol D. All of above
Which compound is also known by the name of carbolic acid ?
A. C2H2OH B. H2CO3 C. C6H5OH D. H3PO3
Heating phenol with Zn will yield_________________?
A. Benzene B. Benzoic acid C. Phenoxide D. Cyclohexane
Treating phenol with formaldehyde in the presence of dilute base forms Bakelite. The process involved is_________________?
A. oxidation B. elimination C. condensation polymerization D. additional polymertization
Ethanol can be converted into ethanoic acid by_________________?
A. Hydrogenation B. Hydration C. Oxidation D. Fermentation
Methanol can be obtained from_________________?
A. water gas B. destructive distillation of wood C. methane D. all
Absolute alcohol is obtained when rectified spirit is treated with__________________?
A. Ca(OH)2 B. CaCO3 C. CaCl2 D. CaO