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ENTRANCE TEST – 2010 Multiple Questions and Answers.
| 46. | The ionization energy of hydrogen atom is | ||
| A. | Zero | ||
| B. | 13.13 kJmol | ||
| C. | 1313.31 kJmol-1 | ||
| D. | 1313.31 k2 Jmol | ||
| 47. | Which quantum number helps to study the orientation of an orbital in space? | ||
| A. | Principal Quantum Number | ||
| B. | Spin Quantum Number | ||
| C. | Magnetic Quantum Number | ||
| D. | Azimuthal Quantum Number | ||
| 48. | The inter-ionic distance in a crystal lattice of KCl is | ||
| A. | 314 pm | ||
| B. | 181 pm | ||
| C. | 95 pm | ||
| D. | 300 pm | ||
| 49. | The number of bonds in nitrogen molecule is | ||
| A. | One σ and two π | ||
| B. | One σ and one π | ||
| C. | Three σ only | ||
| D. | Two σ and one π | ||
| 50. | Which one of the following molecules has zero dipole moment? | ||
| A. | NH3 | ||
| B. | CHCl3 | ||
| C. | BF3 | ||
| D. | H2O | ||
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