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.Management Sciences
Category: Chemistry Mcqs
Which one is the right value for R ?
A. 0.0821 atm dm3k-1mol-
B. 0.0821 atm m3k-1mol-1
C. 2 cal k-1 mol-1
D. 8.314 Nm2k-1mol-1
Isotopes differ in_________________?
A. properties which depend upon mass
B. arrangement of electrons in orbitals
C. chemical properties
D. all of the above
Measurement of the degree of polarity is___________________?
A. Electron affinity
B. Ionic character
C. Ionization energy
D. Dipole moment
Mostly elements have fractional atomic masses because of______________________?
A. mass of an atom itself is in fraction
B. atomic masses are average masses of isobars
C. atmoic masses are average masses of isotopes proportional to their relative abundance
D. atmoic masses are average masses of isotopes
_______________ can expel proteons from paraffins ?
A. Electron
B. Positron
C. Neutron
D. None of above has such capability
Enzynies that catalyze the transfer of groups within molecule are called_________________?
A. Isomerases
B. Lyases
C. Transferases
D. Ligases
Crystallites are present in_________________?
A. crystalline solids
B. amorphous solids
C. liquid crystals
D. all of the above
Which of these gases diffuse more quickly than oxygen ?
A. H2S
B. NO
C. Cl2
D. N2O
Raney nickel is prepared from ______________________ by treating with caustic soda?
A. Ni-Cu alloy
B. Ni-Fe alloy
C. Ni-Al alloy
D. Ni-Mg alloy
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