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.Management Sciences
Category: Chemistry Mcqs
Rate of reactions of most organic compounds are____________________?
0
A. very slow
B. very fast
C. slow
D. no regular character present
Concept of Triads was introduced by_______________?
A. Dobereiner
B. Newland
C. Mendeleev
D. Al-Razi
Which one of the following is not the use of graphite ?
A. Lead pencils
B. Abrasive
C. Lubricant
D. Electrode of electrolytic cell
How many moles of H2 are added up when benzene is heated with hydrogen in the presence of platinum ?
A. Two
B. Three
C. Four
D. Six
Which one of the following alcohol has greater boiling point___________________?
A. ethanol
B. ethylene glaycol
C. glycerol
D. methanol
Bohrs model is contradicted by__________________?
A. Plancks theory
B. Dual nature of matter
C. Heisenbergs uncertainty principle
D. All of these
Which is the unit of (K) rate constant for zero order reaction ?
A. s-1
B. mol dm-3 s-1
C. mol-1 dm3 s-1
D. mol-2 dm6 s-1
Covalent network crystals have_____________?
A. higher melting point then molecular crystals
B. lower melting point then molecular crystals
C. discrete molecules linked by Van der waals forces
D. hydrogen bonding
Which of the following has orange flavour__________________?
A. isobutyl formate
B. octyl acetate
C. ethyl butyrate
D. amyl lactate
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