List of top Questions asked in VITEEE- 2023

In a Rutherford scattering experiment, when a projectile of charge \( Z_1 \) and mass \( M_1 \) approaches a target nucleus of charge \( Z_2 \) and mass \( M_2 \), the distance of closest approach is \( r_0 \). The energy of the projectile is:
If \( m \) is magnetic moment and \( B \) is the magnetic field, then the torque is given by:
A planet in a distant solar system is 10 times more massive than Earth and its radius is 10 times smaller. Given that the escape velocity from Earth's surface is 11 km/s, the escape velocity from the planet’s surface would be:

If \( V_1 \) is the velocity of a body projected from point A and \( V_2 \) is the velocity of a body projected from point B, which is vertically below the highest point C, and if both the bodies collide, then: 
 

For the circuit shown in the figure, the current through the inductor is \( 0.9A \) while the current through the condenser is \( 0.4A \). Then: 
 

The P-V diagram of a diatomic ideal gas system undergoing a cyclic process is shown in the figure. The work done during the adiabatic process \( CD \) is (Use \( \gamma = 1.4 \)): 
 

A and B are two metals with threshold frequencies \( 1.8 \times 10^{14} \) Hz and \( 2.2 \times 10^{14} \) Hz. Two identical photons of energy \( 0.825 \) eV each are incident on them. Then photoelectrons are emitted in (Take \( h = 6.6 \times 10^{-34} \) Js):
Arrange the following in increasing order of ionic radii: \( C^{4-}, N^{3-}, F^{-}, O^{2-} \).
The product(s) formed when diborane (\( B_2H_6 \)) is hydrolyzed is/are:
An element X has a body-centred cubic (bcc) structure with a cell edge of 200 pm. The density of the element is 5 g cm\(^{-3}\). The number of atoms present in 300g of the element X is:
Given: Avogadro Constant, \( N_A = 6.0 \times 10^{23} \) mol\(^{-1} \).
The rate law for a reaction between the substances A and B is given by: \[ {Rate} = k[A]^m[B]^n \] On doubling the concentration of A and halving the concentration of B, the ratio of the new rate to the earlier rate of the reaction will be:
In Clemmensen reduction, carbonyl compounds are treated with:

Values of dissociation constant \( K_a \) are given as follows: 
 

Correct order of increasing base strength of the conjugate bases \( {CN}^-, {F}^- \) and \( {NO}_2^- \) is: 
 

The geometry and magnetic behaviour of the complex \([Ni(CO)_4]\) are:

The major product of the following reaction is: 

In a reaction, the threshold energy is equal to:
Which property of white phosphorus is common to red phosphorus?
\( XeO_4 \) molecule is tetrahedral having:
What is the correct order of reactivity of alcohols in the following reaction?
$$ R - OH + HCl \rightarrow R - Cl + H_2O $$ 
The Allyl cyanide molecule contains:

For the below-given cyclic hemiacetal (X), the correct pyranose structure is: 
 

In which case does the change in entropy (\( \Delta S \)) become negative?

The correct increasing order of basic strength for the following compounds is: 

The compounds \( CH_3CH=CHCH_3 \) and \( CH_3CH_2CH=CH_2 \):
Which of the following exhibits Frenkel defects?