List of top Questions asked in Tamil Nadu Common Entrance Test

Which of the following is not true about Hydraulic capacitance flow control system used in HPLC?
Morphine is the structure chiefly responsible for the biological activity of opium. What is the name given to the chemical that is chiefly responsible for the biological activity of a natural extract?
What is the predominant \( \beta \)-adrenoceptor in bronchial smooth muscle?
To which class of compounds do adrenaline, noradrenaline, and dopamine belong?
What is the predominant adrenoceptor in heart muscle?
What sort of receptor is the muscarinic receptor?
Atracurium is used intravenously as a neuromuscular blocker. 
tracurium is used intravenously as a neuromuscular blocker
 The molecule undergoes a chemical degradation at slightly alkaline pH. What is the name of this reaction?
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