Most Important & Most Repeated MCQs

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:

•
No Comments
  • Stable state
  • Stationary state
  • Excited state
  • Unstable state
  • b

  • These certain orbits are known as Stationary State or Stationary Orbits.

View More Details »

The white light gives continuous band of colours, each single band has specific wave length known as _____ light.

•
No Comments
  • Spectrum
  • Coherent
  • Monochromatic
  • Unichromatic
  • c
View More Details »

Amorphous solids, which melt over a wide range of temperature, as they don’t have sharp melting point. This is because:

•
No Comments
  • They have definite pattern
  • They have uniform attractive forces
  • Their crystals are identical in shape
  • Their inter molecular forces vary place to place
  • d
View More Details »

Which of the following fact about liquid’s behavior is used in hydraulic brake system?

•
No Comments
  • Diffusibility
  • Compressibility
  • Viscosity
  • Fluidity
  • d
View More Details »

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.

•
No Comments
  • Arrays
  • Groups
  • Clusters
  • Gangs
  • c
View More Details »

To work out empirical formula, we calculate the percentage of elements from their masses, this step is termed as:

•
No Comments
  • Element detection
  • Estimation
  • Getting simple ratio
  • Division of smallest quotient
  • b
View More Details »

In irreversible reactions, the reactions go to completion, until one of the reactant consumed entirely and reaction stop is called as:

•
No Comments
  • Limiting Reactant
  • Excess Reactant
  • Excess Reactant
  • None of these
  • a
View More Details »

Internal area of an alveolus is provided with a thin layer of fluid containing ____

•
No Comments
  • Pleural fluid
  • Surfactant
  • Oxygen
  • Mycous
  • b
View More Details »

The total aggregate of genes in a population at any one time is called:

•
No Comments
  • Allele
  • Inheritance
  • Trait
  • Gene Pool
  • d
View More Details »

Sub-stage of first mitotic division in which the disappearance of the nuclear membrane, nucleolus and completion of spindle apparatus takes place is termed as:

•
No Comments
  • Leptotene
  • Zygotene
  • Diakinesis
  • Pachytene
  • c

  • Diakinesis is the final sub stage of Prophase in Mitosis.

View More Details »