- Polystyrene
- Polyethylene
- polypropylene
- Terylene
Category: Past Papers MCQs
| No. | Topics. | No. | Topics. |
|---|---|---|---|
| 1. | Biology mcqs | 2. | Chemistry mcqs |
| 3. | General Knowledge mcqs | 4. | Pak Studies |
| 5. | Physics mcqs |
- Hydrogen
- Carbon dioxide
- Methane
- Nitrous oxide or N2O
- jute
- cotton
- linen
- silk
- Internal energy
- enthalpy
- Work
- volume
- Na-Hg/HO
- Zn/HCI (alcoholic)
- conH2SO4
- H/Raney Ni
- Dipole – dipole forces
- Dipole – induced dipole forces
- Ion – dipole forces
- London forces
- Lower members are insoluble in water but solubility regularly increases with molecular weight
- They are lighter than water
- lower members have a pleasant smell and burning taste, higher members are odourless and tasteless
- Their P. rise fairly uniformly with rising molecular weight
- Adsorption is irreversible
- DH is of the order of 40 kJ
- Adsorption is specific
- Adsorption increases with increase of surface area
- Elevation in boiling point
- Depression in freezing point
- Relative lowering of vapour pressure
- Vapour pressure
- Glyptal
- Terelene
- polystyrene
- Nylon 66
- The number of molecular orbitals formed is always equal to the number of atomic orbitals combine
- The more stable the bonding molecular orbital, the less stable the corresponding antibonding molecular orbital.
- In a stable molecule, the number of electrons in bonding molecular orbitals is always equal to that in antibonding molecular orbitals.
- Like an atomic orbital, each molecular orbital can accommodate up to two electrons with opposite spins in accordance with the Pauli exclusion principle.
- Cement containing no iron is white.
- Cement containing excess amount of lime cracks during setting.
- Setting of cement is an endothermic process.
- Setting of cement is an example of hydration.
- Molarity
- Temperature
- Density
- All are correct
Top Contributors
All Categories
Quantitative Reasoning (Maths)
- No categories
Verbal Reasoning (English)
- No categories
Past Papers
Practice Papers
- No categories