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Chemistry Fsc Part 1 Chapter 3 Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | The expected bond energy of HCl is lesser than the actual, this is because. |
<p>Size of hydrogen is very small</p> <p>HCl is non polar compund</p> <p>HCl is a polar comoound</p> <p>There exists hydrogen bonding</p> |
| 2 | The actual bond length in a polar covalent compund is. |
<p>Lesser thanexpected</p> <p>Greeater ahtn expected</p> <p>Equal to the expected</p> <p>Exactly half of expected</p> |
| 3 | The bond formation energy of a compund is. |
<p>Equal to bond idssociation energy</p> <p>Less thanbond idssociation energy</p> <p>Greater than bond dissociaton energy</p> <p>Inverselyproportional to bond dissociation energy</p> |
| 4 | The bond distance betwen H-H is |
<p>74.5 pm</p> <p>436.45 pm</p> <p>133 pm</p> <p>154 pm</p> |
| 5 | Tendency of an atom to attract the shared pair of electrons is called. |
<p>Electronegativity</p> <p>Ionization energy</p> <p>Electron Affinity</p> <p>Electrpositivity</p> |
| 6 | If the electronegativity differene between bonded atoms is more than 0.5 but less than 1.7, the bond will be. |
<p>Ionic</p> <p>Polar Covalent</p> <p>Non polar covalent</p> <p>Coordinate covalent</p> |
| 7 | Covalent bonds are |
<p>Right and directional</p> <p>Non rigid and directional</p> <p>Rigid and non directional</p> <p>Non rigid and non directional</p> |
| 8 | Octet rule is not obeyed b which of the following compounds during its formation |
<p>H2O</p> <p>NaCl</p> <p>NH3</p> <p>PF5</p> |
| 9 | Which of the following elements has incopleteoctel after making the bond. |
<p>Be in BeCl2</p> <p>O in H2O</p> <p>C in CH4</p> <p>N in NH3</p> |
| 10 | The most electronegative atom is |
<p>F</p> <p>Cl</p> <p>N</p> <p>O</p> |
| 11 | Which of the followng molecules has zero dipole moment. |
<p>BF3</p> <p>NH3</p> <p>H2O</p> <p>CHCl3</p> |
| 12 | Which one is a non polar molecule. |
<p>CS2</p> <p>CaC2</p> <p>H2S</p> <p>CaCl2</p> |
| 13 | Which one is a polar molecule |
<p>HCl</p> <p>CO2</p> <p>BF3</p> <p>CCl4</p> |
| 14 | Which of the following has all the three characters i.e. ionic, covalent and coordinate covalent. |
<p>H2O</p> <p>NH3</p> <p>KBr</p> <p>NH4Cl</p> |
| 15 | In which of the following molecules ionic bond is found. |
<p>CsI</p> <p>NH3</p> <p>HF</p> <p>CaC2</p> |
| 16 | Which of the following species contains a dative bond. |
<p>NH4</p> <p>CH4</p> <p>SO2</p> <p>PCl5</p> |
| 17 | Which of the following molecules has a central atom with sp3 hybridization and a tetrahedral electron pair geometry. |
<p>CCl4</p> <p>BF3</p> <p>SO2</p> <p>PCl5</p> |
