- Intrinsic properties
- Microscopic properties
- Macroscopic properties
- Extrinsic properties
- c
2025
All Solved Current and Past Papers of 2025 are included in this section of ETEST Academy’s Website. All MCQs of Year 2025 are solved with short detailed answers. ETEST Academy updates this portion of Past Papers 2025 on daily basis.
Linus Pauling assumed that the atomic orbital having nearly equal energies can be combined in various ways within an atom to form ____ hybrid orbital.
- More
- Less
- Equivalent
- Different
- c
NaCl and KCL have high melting and boiling points due to their:
- Amorphous structure
- Strong inter molecular forces
- Strong inter ionic forces
- Irregular crystal structure
- c
Bohr’s assumed that on the basis of Quantum theory, there exists the possibility that electrons in certain orbits may not give out radiation and remain stable, called as:
- Stable state
- Stationary state
- Excited state
- Unstable state
- b
-
These certain orbits are known as Stationary State or Stationary Orbits.
The white light gives continuous band of colours, each single band has specific wave length known as _____ light.
- Spectrum
- Coherent
- Monochromatic
- Unichromatic
- c
Amorphous solids, which melt over a wide range of temperature, as they don’t have sharp melting point. This is because:
- They have definite pattern
- They have uniform attractive forces
- Their crystals are identical in shape
- Their inter molecular forces vary place to place
- d
Which of the following fact about liquid’s behavior is used in hydraulic brake system?
- Diffusibility
- Compressibility
- Viscosity
- Fluidity
- d
According to the Kinetic Theory of Liquids, particles of liquid are fairly randomly arranged (as in gas), but consists of ____ in which they are very close together.
- Arrays
- Groups
- Clusters
- Gangs
- c
To work out empirical formula, we calculate the percentage of elements from their masses, this step is termed as:
- Element detection
- Estimation
- Getting simple ratio
- Division of smallest quotient
- b
In irreversible reactions, the reactions go to completion, until one of the reactant consumed entirely and reaction stop is called as:
- Limiting Reactant
- Excess Reactant
- Excess Reactant
- None of these
- a