- Kr
- xe
- Rn
- Ar
Category: Past Papers MCQs
| No. | Topics. | No. | Topics. |
|---|---|---|---|
| 1. | Biology mcqs | 2. | Chemistry mcqs |
| 3. | General Knowledge mcqs | 4. | Pak Studies |
| 5. | Physics mcqs |
- –41 kJ mol–1
- –1312 kJ mol–1
- –164 kJ mol–1
- –82 kJ mol–1
- polymorphism
- an anisotropy
- isomorphism
- enantiomorphism
- 4-f orbital
- 6-f orbital
- 5-f orbital
- 7-f orbital
- Hydrogen
- Bismuth
- Chlorine
- Oxygen
- Principal quantum number
- Azimuthal quantum number
- Spin quantum number
- Magnetic quantum number
- Valency electrons
- Octate electrons
- Duplet electrons
- Valence electrons
- number of electrons lost
- number of electrons gained
- number of electrons transferred
- Number of electrons lost or gained by the atom of the element during the formation of ionic ions compound
- Hydrogen
- Bismuth
- Chlorine
- Oxygen
- small size of sulphur
- large size of oxygen
- electronic repulsion due to small size ot oxygen
- poor shielding effect
- small size of sulphur
- large size of oxygen
- electronic repulsion due to small size ot oxygen
- poor shielding effect
- in NH3 the atomic dipole and bond dipole are in the opposite directions whereas in NF3 these are in the same direction
- in NH3 as well as in NF3 the atomic dipole and bond dipole are in the same direction
- in NH3 the atomic dipole and bond dipole are in the same direction whereas in NF3 these are in opposite directions
- in NH3 as well as NF3 the atomic dipole and bond dipole are in opposite directions
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