26. | Number of isotopes occupied by carbon is |
a. | three |
b. | seven |
c. | five |
d. | six |
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Answer: (a).three
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27. | Mass of one molecule of sulphuric acid is |
a. | 98 |
b. | 95 |
c. | 97 |
d. | 92 |
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Answer: (a).98
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28. | Law of definite proportion is obeyed in |
a. | Stoichiometry |
b. | electrometry |
c. | spectrometer |
d. | photometry |
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Answer: (a).Stoichiometry
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29. | Mass spectrometer use to determine isotopes in solid state is |
a. | Bohr's |
b. | Aston's |
c. | dempester's |
d. | Alison's |
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Answer: (c).dempester's
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30. | Amount of oxygen in combustion analysis is determined by method of |
a. | product |
b. | difference |
c. | addition |
d. | division |
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Answer: (b).difference
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