| 21. | English scientist who discovered plasma was |
| a. | William Crookes |
| b. | Wilson |
| c. | Watson |
| d. | Wauker |
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Answer: (a).William Crookes
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| 22. | Value of constant 'a' increases with increase in |
| a. | pressure |
| b. | volume |
| c. | intermolecular forces |
| d. | temperature |
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Answer: (c).intermolecular forces
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| 23. | Melting points of states of matter depends upon strength of |
| a. | intermolecular forces |
| b. | volume |
| c. | molecules |
| d. | atoms |
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Answer: (a).intermolecular forces
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| 24. | Magnetic fields create plasma which is known as |
| a. | stable state |
| b. | shifted state |
| c. | metastable state |
| d. | degenerated state |
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Answer: (c).metastable state
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| 25. | 'K' according to Boyle's law s equal to |
| a. | PT |
| b. | PV |
| c. | P/V |
| d. | P/T |
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Answer: (b).PV
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