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.Management Sciences
Category: Chemistry Mcqs
nergy of atom in compound is___________________?
EA. Higher than individual
B. Lesser than individual
C. No change
D. Impossible to predict
Boron is non metal while other elements of IIIA group are metals. This is because______________?
A. it has small size
B. it has high nuclear charge
C. it forms molecular addition compounds
D. all of the above
In diaphragm cell level of brine in anode compartment is kept slightly higher which prevents_______________?
A. Hydroxide ions to reach anode
B. Chlorine gas to mix
C. Cathode to decay
D. All of the above
Silica gel and alumina are used as __________________?
A. Mobile phase
B. Stationary phase
C. Mixed phase
D. Single phase
Atomic orbits having same energy are called________________?
A. Degenerate orbitals
B. Bonding molecular orbitals
C. Anti bonding molecular orbitals
D. Half filled orbitals
Phosphorous acid upon thermal decomposition yields phosphoric acid and____________________?
A. Phosphine
B. Phosphorus
C. Water
D. Phosphorus pentoxide
Phenol was isolated by Runge from________________?
A. vegetable oil
B. coaltar
C. wood
D. none of these
Voltaic cell is a_________________?
A. irreversible cell
B. reversible cell
C. alkaline cell
D. all of the above
Acetal on acid hydrolysis generates__________________?
A. Alcohol
B. Ketone
C. Both A & B
D. None of the above
Polymers described as large molecules built up from small repeating units called________________?
A. Biopolymers
B. Dimers
C. Monomers
D. metamers
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