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.Management Sciences
Category: Chemistry Basic Concept
Avogadros number may represent_________________?
0
A. volume of particles
B. number of particles
C. mass of particles
D. All of the above
In solids the temperature is the measure of__________________?
A. Average kinetic energy of molecules
B. Vibrational kinetic energy
C. Translational kinetic energy
D. None of the above
Which of the following statements about isotopes is correct ?
A. Isotopes with odd atomic number are abundant
B. Isotopes with odd atomic number and even mass number are abundant
C. Isotopes with even atomic number and even mass number are abundant
D. Isotopes with even atomic number and odd mass no are abundant
The number of moles of CO2 which contains 16 g of oxygen is__________________?
A. 0.25
B. 0.5
C. 0.75
D. 1
The rectified spirit is________________?
A. 12% alcohol
B. 90% alcohol
C. 95% alcohol
D. 100% alcohol
In which of the following type of reactions energy of reactant is greater than energy of product________________?
A. endothermic
B. exothermic
C. unpredictable
D. same
Across short period the melting and boiling point increase upto __________________?
A. IIIA group
B. IVA group
C. VA group
D. VIA group
Which of the following terms is not used for ionic compound ?
A. formula unit
B. empirical formula
C. molecular formula
D. formula mass
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