UPCATET Question Paper 2025 (Available): Download Question Paper with Answer Key PDF

UPCATET 2025 Questions

• 1.

  If 0.01 mol of $\mathrm{P_4O_{10}}$ is removed from 0.1 mol, then the remaining molecules of $\mathrm{P_4O_{10}}$ will be:

  • $ 2.7 \times 10^{22} $
    
  • $ 5.4 \times 10^{23} $
    
  • $ 5.4 \times 10^{22} $
    
  • $ 1.35 \times 10^{23} $
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• 2.

  Unit of \( K_C \) for equilibrium:

  • \( \text{mol L}^{-1} \)
    
  • \( \text{L mol}^{-1} \)
    
  • \( \text{mol}^2 \text{L}^{-2} \)
    
  • Dimensionless
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• 3.

  An element has two isotopes having atomic masses 10 and 15 u, respectively. If the percent abundance of lighter isotopes is 80%, then the average atomic mass of the element is:

  • $ 9 \, \text{u} $
    
  • $ 11 \, \text{u} $
    
  • $ 12 \, \text{u} $
    
  • $ 14 \, \text{u} $
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• 4.

  Choose the correct statement

  • A body can be accelerated by frictional force
  • There can be zero friction
  • Kinetic friction is greater than rolling friction
  • Frictional force and area of contact between the two surface are proportional
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• 5.

  What is the time taken by a particle executing SHM with a time period \( T \) sec from a positive extreme position to half of the amplitude?

  • \( \dfrac{2T}{12} \, \text{sec} \)
  • \( \dfrac{T}{12} \, \text{sec} \)
  • \( \dfrac{6T}{12} \, \text{sec} \)
  • \( \dfrac{3T}{12} \, \text{sec} \)
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