- Rate law expression cannot be obtained from the stoichiometric equation
- Law of mass action expression can be written from the balanced equation
- Specific reaction rate of a reaction is constant at constant temperature
- Rate of reaction and rate constant have same units
Category: Past Papers MCQs
| No. | Topics. | No. | Topics. |
|---|---|---|---|
| 1. | Biology mcqs | 2. | Chemistry mcqs |
| 3. | General Knowledge mcqs | 4. | Pak Studies |
| 5. | Physics mcqs |
- it is a directional bond
- bond strength is similar to O – H bond
- it is attraction between hydrogen and electronegative atom like as F, O, N
- it does not require minimum one lone pair of electron at electronegative atom.
- Gases do not have definite shape and volume
- Volume of the gas is equal to the volume of the container confining the gas
- Confined gas exert uniform pressure on the wall of the container in all directions
- Mass of the gas cannot be determined by weighing a container in which it is contained
- interstitial compounds are much harder
- transition metallic carbides are chemically reactive
- transition metal hydrides are powerful reducing agent
- interstitial compounds have higher melting points than the pure metal
- Fats and oils are stored source of energy
- They provide more energy than proteins or carbonydrates
- They help m absorbng the vitamins A and D
- Fats are soluble in water
- Energy of the electrons in the orbits are quantized
- The electron in the orbit nearest the nucleus has the lowest energy
- Electrons revolve in different orbits around the nucleus
- The position and velocity of the electrons in the orbit cannot be determined simultaneously.
- Cation is less stable than the parent atom
- Cation is smaller in size than the parent atom
- Size of cation and parent atom is the same
- Cation is greater in size than the parent atom
- Materials existing as liquids at room temperature have their melting and boiling points lower than that of room temperature.
- The phenomenon involving the transition of a substance from solid to liquid state is called sublimation.
- To convert a temperature on the Celsius scale to Kelvin scale, subtract 273 from the given temperature
- The density of ice is less than that of water.
- oxidation state of +3 is most common in both the series
- In both series f-orbitals are progressively filled
- the elements of these series are radioactive
- both series show contraction effect
- lanthanides are more electro-positive than actinides
- actinides are strong reducing agent than lanthanides
- the properties of 4f series are similar to those of lanthanum
- actinides are radioactive elements
- LiOH is amphoteric in nature
- LiCl is soluble in pyridine
- Li3N is stable while Na3N doesn't exist even at room temperature
- BeO is amphoteric in nature
- caustic soda solution (aqueous)
- aqueous caustic potash
- moist Ag,O
- dry silver oxide
- Acetone
- Ozone
- MnO2
- Aluminium isopropxide
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