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MDCAT Chemistry Chapter 9 Electrochemistry Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | A molecule which contains two lone pairs and two bond pairs of electrons in valence shell of central atom, geometrical shape of molecules will be | Tetrahedral Trigonal pyramidal Angular Linear |
| 2 | What will be the shape of a molecule which containstwo sigma bond pairs and one lone pair? | Linear V shape Tetragonal Triangular |
| 3 | The shielding effect of inner electron is responsible for | Having no effect on ionization energy Decreasing ionization energy Increasing ionization energy Increasing electronegativity |
| 4 | The elements for which the value of ionization energy is low can | Gain electrons readily Lose electron less readily Gain electrons with difficulty Lose electron readily |
| 5 | The ionization energy of hydrogen atom is | Zero 131.3kJmole 13.13kJ/mole 1313kJ/mole |
| 6 | For formation of ionic bond, electronegativity difference should be |
Equal to zero Equal to 0.5 More then 1.7 Less than 1.7 |
| 7 | Which of the following molecule has zero dipole moment? | PCI3 BF3 NH3 H2O |
| 8 | Among the following molecules, which one has coordinate covalent (dative) bond? | CCI4 CO2 CO CH4 |
| 9 | Which one of the following has zero dipole moment | NH3 CHCI3 H2O BF3 |
| 10 | Low IE is a symbol of | high electronegativity small size High electron affinity Metallic character |
| 11 | At compromise distance the forces dominating between atoms are | repulsive forces attractive forces Dipole induced dipole force H-bonding |
| 12 | What is not true for NH4CI | It has ionic bond It has covalent bond It has coordinate bond It has hydrogen bond |
| 13 | H3O+ can't accept a Ip because | it has positive charge The central atom is not electron deficient The shell of oxygen has reached its limit it already has a coordinate bond |
| 14 | What is true for a molecule with standard geometry | It lacks a Ip It can't be a donor It can be an acceptor All |
| 15 | Which one is a non-polar compound? | SnCl2 PH3 Gecl4 H2O |
| 16 | The no. of Ip's on oxygen in CO are | 1 3 4 2 |
| 17 | A molecule that has polar bonds but is overall non - polar | IF CCl4 PCI3 All |
| 18 | In a group, the atomic radii from top to bottom | increase decrease don't change show variable trend |
| 19 | In a period the atomic radii | increase decrease remain same first increase, then decreased |
| 20 | The ionization energy | generally increases from left to right in a period increases from top to bottom in a group does not change in a period does not change in a group |
