46. | Example of atom having single isotope is |
a. | carbon |
b. | calcium |
c. | gold |
d. | cadmium |
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Answer: (c).gold
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47. | Products which are obtained in a chemical reaction is |
a. | production |
b. | No yield |
c. | theoretical yield |
d. | actual yield |
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Answer: (d).actual yield
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48. | Isotopes of calcium are |
a. | seven |
b. | six |
c. | nine |
d. | twelve |
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Answer: (b).six
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49. | Isotopes differ in number of |
a. | electrons |
b. | protons |
c. | neutrons |
d. | anti neutrino |
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Answer: (c).neutrons
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50. | In ionization chamber vapors are bombarded with fast moving |
a. | protons |
b. | electrons |
c. | neutrons |
d. | antineutron |
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Answer: (b).electrons
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