List of top Questions asked in AIIMS, DUET

The element Neodymium (Nd) belongs to the 4f series. What is its atomic number?
The correct increasing order of energy of orbitals in a hydrogen atom is:
Which of the following is a globular protein?
Given that the surface charge density on a sphere is 200 μC/m2, what is the electric field at the surface of the sphere?
Which of the following is a crystalline solid?
1028 grams of seawater sample contains 7 mL of dissolved oxygen ($ \text{O}_2 $). What is the concentration of oxygen in parts per million (ppm)?
Explain why ortho-nitrophenol is more steam volatile than para-nitrophenol.
Two blocks of mass \( 20\,\text{kg} \) and \( 30\,\text{kg} \) are placed in contact on a smooth horizontal surface. A force \( F = 60\,\text{N} \) is applied to the \( 20\,\text{kg} \) block. Find the force exerted by the \( 20\,\text{kg} \) block on the \( 30\,\text{kg} \) block.


What is the correct IUPAC name for the following compound?


What is the major product formed when phenol is treated with sodium dichromate (\( \text{Na}_2\text{Cr}_2\text{O}_7 \)) and sulfuric acid (\( \text{H}_2\text{SO}_4 \))?

In a diffraction experiment, the fringe width $ \beta $ is 0.3 mm, the distance from the slit to the screen $ D $ is 5 cm, and the slit width $ d $ is 3 mm. What is the wavelength $ \lambda $?


What is the major product of the reaction?

A solenoid has a radius of 10 cm, 200 turns per meter, and carries a current of 2 A. What is its inductance per unit length?
Which one of the following is odd one out?
Which term is used for cells performing similar functions and cells collecting intracellular material?
The number of ions formed on dissolving one mole of $ \text{K_3[\text{Fe}(\text{CN})_6] $ in water is:}

Which compound is formed as the final product $ B $?

Which non-metallic solid is known for its electrical conductivity?
In LCR circuit total potential is 10V and L-C-R connected in series the potential on L and C are 5v and 11 v respectively find the potential drop on R.
Arrange the following compounds in increasing order of their boiling points:
  • \(\mathrm{C_2H_5OH}\) (Ethanol)
  • \(\mathrm{CH_3CHO}\) (Acetaldehyde)
  • \(\mathrm{CH_3CH_2CH_3}\) (Propane)
  • \(\mathrm{CH_3OCH_3}\) (Dimethyl ether)

Match the given under column

Given two force vectors:
\[ \vec{F}_1 = 2\hat{i} + 3\hat{j} - \hat{k}, \quad \vec{F}_2 = \hat{i} + \hat{j} + \hat{k} \] What is the magnitude of the resultant force?
ERV
An object is placed at a distance of 10 cm from a lens with a focal length of 30 cm. What is the magnification of the image?
Which of the following is adsorbent?