List of top Questions asked in Tamil Nadu Common Entrance Test

What does the symbol \( P \) represent in a QSAR equation?
Which of the following statements is untrue when comparing 3D QSAR with conventional QSAR?
Calculate the $\log P$ value for the structure shown; $\log P$ for benzene = 2.13; $\pi$(OH) = -0.67; $\pi$(CH$_3$) = 0.52 Calculate the log P value for the structure shown; log P for benzene = 2.13; π(OH) = -0.67;
Consider the following analgesic.
Consider the following analgesic
What is the source of this structure?
What does a negative value of $\sigma$ signify for a substituent?
Which of the following is one of the rules in Lipinski’s rule of five?
A cation vacancy and an anion vacancy in a crystal is called
The nearest neighbor distance in case of BCC structure is
In a cubic crystal, a plane makes intercepts \( 1,2,2 \) on the \( x, y, \) and \( z \) axes respectively. The Miller indices of that plane is
The crystal structure of the following materials is FCC except
How many number of atoms are present in the unit cell of HCP structure?
Which of the following structures has the highest density of packing?
The Fe-Fe bond length is 2.48Å, the radius of iron atom is
The correct order of co-ordination number in BCC, FCC and HCP unit cells is
The interplanar distance for (100) planes in a rocksalt crystal with \( a = 2.814 \)Å is
Choose the wrong statement
In comparison to lattice diffusion, the activation energy for diffusion along surfaces and grain boundaries is
Frank–Reed source is a
The degree of freedom when ice, water, and water vapour co-exist in equilibrium is
In a binary system of A and B, if a liquid of 30% A is co-existing with a solid of 75% A, for an overall composition of 40% A, the fraction of liquid is given by
Which one of the following sets of constituents is expected in equilibrium cooling of a hyper-eutectoid steel from the austenitic state?
Which one of the following statements about phase diagrams is NOT correct?
Specify the sequence correctly
The armchair structure of a carbon nanotube is obtained when the nanotube axis is
Which of the following heat treatment processes is used for softening hardened steel?