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Chapter-1 - 11th - Basic Concepts Preparation Multiple Questions and Answers.
| 21. | The atomicity of one molecule of Haemoglobin is: | ||
| A. | 10,000 | ||
| B. | 68,000 | ||
| C. | 17,000 | ||
| D. | 100,000 | ||
| 22. | Formation of uninegative ion is: | ||
| A. | Exothermic | ||
| B. | Endothermic | ||
| C. | Both A & B | ||
| D. | None of these | ||
| 23. | Which of the following elements has nine isotopes: | ||
| A. | Ca | ||
| B. | Pd | ||
| C. | Cd | ||
| D. | Sn | ||
| 24. | Which of the following will form single peak in mass spectrograph: | ||
| A. | Iodine | ||
| B. | Arsenic | ||
| C. | Fluorine | ||
| D. | All of these | ||
| 25. | Which one of the following contains maximum no. of molecules: | ||
| A. | 16.0 g of CH4 | ||
| B. | 16.0 g of O2 | ||
| C. | 16.0 g of SO2 | ||
| D. | 16.0 g of H2O | ||
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