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Chemistry Fsc Part 1 Chapter 3 Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | Paramagnetic specie is. |
<p>N2</p> <p>N2<sup> -1</sup></p> <p>O2 <sup>+2</sup></p> <p>O2 <sup>-2</sup></p> |
| 2 | Highest bond order is found in |
<p>O2</p> <p>O2 <sup>-1</sup></p> <p>O2 <sup>+2</sup></p> <p>O2 <sup>+1</sup></p> |
| 3 | Which theory explain the paramagnetic behavior exhibited by O2 molecule. |
<p>Band Theory</p> <p>VBT</p> <p>MOT</p> <p>VSEPR Theory</p> |
| 4 | Which of the followng statemtn not correct regarding bounding molecular oritals. |
<p>Bonding molecular orbital posses less energy than atomic orbitals from which they are formed</p> <p>Bonnding molecular orbitals have low electron density betwene the two nuclie</p> <p>Every electron in the boundg molecular orbitals contributes to the attraction between atoms.</p> <p>Bonding molecular orbitals are formed whn the electron waves undergo constructive interference </p> |
| 5 | Which of the following will show paramagnetic property. |
<p>O2</p> <p>N2</p> <p>O 2<sup> -2</sup></p> <p>O2 <sup>+2</sup></p> |
| 6 | Which of the following hybridizations is found in ethyne. |
<p>Sp</p> <p>sp2</p> <p>sp3</p> <p>No hybridization </p> |
| 7 | What is bond angele in NF3? |
<p>102<sup>o</sup></p> <p>109.5<sup>o</sup></p> <p>104,5<sup>o</sup></p> <p>107.5<sup>o</sup></p> |
| 8 | The bond angle in ethene molecule is. |
<p>120<sup>o</sup></p> <p>180<sup>o</sup></p> <p>109<sup>o</sup></p> <p>107.5<sup>o</sup></p> |
| 9 | Which type of hybridization of C occurs in CO2 |
<p>SP</p> <p>sp2</p> <p>sp3</p> <p>dsp2</p> |
| 10 | Sp3 Hybridiztion ins associated wiht structure. |
<p>Linear</p> <p>Tretrahedral</p> <p>Trigonal</p> <p>Octahedra</p> |
| 11 | What is molecular geopetry of SO4 -2 ion. |
<p>Tetrahedra</p> <p>Trigonal Planar</p> <p>Trigonal pyramidal</p> <p>Linear</p> |
| 12 | Thnumebr of lone pair of electonrsein ammonium ion is |
<p>One</p> <p>Two</p> <p>Three</p> <p>Zero</p> |
| 13 | The molecule with linear structure is |
<p>H2O</p> <p>CO2</p> <p>H2S</p> <p>BF3</p> |
| 14 | Dipole moment of CO2 is |
<p>1.8 D</p> <p>1.94 D</p> <p>1.0 D</p> <p>Zero</p> |
| 15 | Dipole moment is the product of. |
<p>Charge x displacement</p> <p>Charge x distance</p> <p>Newton x displacement</p> <p>Charge x mass</p> |
| 16 | Which will have zero dipole moment |
<p>H2O</p> <p>BF3</p> <p>H2S</p> <p>CHCl3</p> |
| 17 | The molecuel with greatest dipole moment is. |
<p>H2O</p> <p>H2S</p> <p>NH3</p> <p>HF</p> |
