Chemistry Fsc Part 1 Chapter 6 Online Test With Answers

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Chemistry Fsc Part 1 Chapter 6 Online Test

Sr. # Questions Answers Choice
1 Which element has highest ionization potential. Li B Be C
2 Which of the following molecule obey octet rule. BF3 BCl3 NH2 SF6
3 Which compound does not obey the octet rule. NH3 BCl3 H2O CH4
4 SP3-hybridization in important in describing the bonding in
5 If we want to change O2to O2-1The electron is to be placed in
6 VSEPR theory was proposed by Nyholn and Gillespie Kossel Lewis Sidwick
7 The shape of H3O is Tetrahedral Angular Trigonal planer Pyramidaj
8 Which of the following molecules has a co-ordinate covalent bond NH<sub>4</sub>CI NaCI HCI AICI<sub>3</sub>
9 The nature of bond in diamond is Electrovalent Metallic Coordinate covalent Covalent
10 Fluorine molecule (F2) is formed by the overlap of s - s orbital s - p orbital p - p head on overlapping of orbitals p - p parallel overlapping of orbitals
11 Which of the following is true for ionic compounds They are non-electrolytes in the molten state They have bonds which are directional They conduct electricity in solid state They are generally more soluble in polar solvents than in non-polar solvents
12 Those elements whose electronegativities are 1.2 and 3.2, react to form Ionic bond Covalent bond Gaseous substance Definiting a liquid substance
13 The shielding effect of the inner electrons is responsible for Increasing ionization energy values Decreasing ionization energy values Increasing electron affinity Increasing electonegativity
14 The octet rule in not followed in the formation of NF<sub>3</sub> CF<sub>4</sub> CCI<sub>4</sub> PCI<sub>5</sub>
15 Which of the following species has unpaired electrons in anti-bonding molecular orbitals O<sub>2</sub><sup>+2</sup> N<sub>2</sub><sup>-2</sup> B<sub>2</sub> F<sub>2</sub>
16 Which of the hydrogen halides has the highest percentage of ionic character HF HBr HCI HI
17 Which of the following molecules has zero dipole moment NH<sub>3</sub> CHCI<sub>3</sub> H<sub>2</sub>O BF<sub>3</sub>
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