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.Management Sciences
Category: Alcohols Phenols and Ethers
The process of fermentation of starch involve many enzymes the sequence of enzymes used are____________________?
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A. Diastase-maltase-zymase
B. Zymase-maltase-diastase
C. Maltase-diastase-zymase
D. Diastase-zymase-maltase
The residue obtained after the crystallization of sugar from concentrated sugar cane juice is called__________________?
A. Mother liquor
B. Filterate
C. Extract
D. Molasses
Ethanol and methanol can be distinguished by a__________________?
A. Iodoform test
B. Lucas test
C. Benedicts test
D. Tollens test
Which one of the following is also known as tartaric acid ?
A. 2 3-dihydroxy butance 1 4 -dioic acid
B. 2 3 -dihydroxy butanedioic acid
C. 2 3 -dihydroxy butanioc acid
D. 2 2 -dihydroxy butanoic acid
K2Cr2O7/H2SO4 generate____________________?
A. Oxygen
B. Hydrogen
C. Nascent oxygen[O]
D. Nascent hydrogen[H]
The rectified spirit contains________________?
A. 12% alcohol
B. 90% alcohol
C. 95% alcohol
D. 100% alcohol
When phenol is heated with concentrated nitric acid the product is________________?
A. Picric acid
B. o-nitrophenol
C. 1 3 5 -trinitro benzene
D. p-nitrophenol
The given dissociation constant (Ka) value 1.3×10-10 is of_________________?
A. Alcohol
B. Acetic acid
C. Water
D. Phenol
Methanol can be obtained from_________________?
A. water gas
B. destructive distillation of wood
C. methane
D. all
Water gas heated at 450?C and 200 atm pressure in the presence of ZnO+Cr2O3 will produce________________?
A. methanol
B. methanol
C. carbonic acid
D. methane
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