Which of the following terms is used for the mass of chlorine 35.5 ?
A. relative atomic mass
B. mass number
C. atomic weight
D. relative isotopic mass
Which of the following terms is used for the mass of chlorine 35.5 ? Read More »
Chemistry
Size of molecule depends upon
A. Atomicity
B. Shape of molecule
C. Both A and B
D. Difficult to predict
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Avogadros number may represent
A. volume of particles
B. number of particles
C. mass of particles
D. All of the above
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Which of the following ion formation is always exothermic?
A. Uni-negative
B. Uni-positive
C. Di-negative
D. Di-positive
Which of the following ion formation is always exothermic? Read More »
Which one is true about isotope?
A. Same number of neutrons
B. Same mass number
C. Same physical properties
D. Same chemical properties
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Molecular ions are formed by passing
A. High energy electron beam
B. ? – particle
C. X-rays
D. All of the above
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Which of the following are isoelectronic species?
A. H+ H HB.
Li+ Na+ K+
C. C1- Br- I
D. F- Ne Na+
Which of the following are isoelectronic species? Read More »
1 a.m.u is equal to
A. 1.6 x 10-27 kg
B. 1.6 x 10-24 kg
C. 1.6 x 10-26 kg
D. 1.6 x 10-28 kg
1 a.m.u is equal to Read More »
The properties of an element mosly corresponds to that isotope which has greater
A. Mass number
B. Atomic mass
C. Relative abundance
D. all of the above
The properties of an element mosly corresponds to that isotope which has greater Read More »
For which of the following compounds the term empirical formula cannot be applied?
A. NaCl
B. H2O
C. CCI4
D. It can be applied to all mentioned above
For which of the following compounds the term empirical formula cannot be applied? Read More »