List of top Chemistry Questions asked in NEET (UG)

A compound formed by elements $X$ and $Y$ crystallizes in a cubic structure in which the $X$ atoms are at the corners of a cube and the $Y$ atoms are at the face-centers. The formula of the compound is :-
Which of the following forms cationic micelles above certain concentration?
Which of the following is least reactive in a nucleophilic substitution reaction?

Which is the best description of the behavior of bromine in the reaction given below:- H2O + Br2 \(\rightarrow\) HOBr + HBr

$CN^-$ is strong field ligand. This is due to the fact that
CN– is a strong field ligand. This is due to the fact that
In an octahedral structure, the pair of d orbitals involved involved in d2 sp3 hybridization is
Which of the following coordination compounds would exhibit optical isomerism
Which one of the following statements about the zeolites is false ?
The rate of first order reaction is $1.5 \times 10^{-2}$ mol $L^{-1} \, min^{-1}$ at 0.5 M concentration of the reactant. The half-life of the reaction is
Camphor is often used in molecular mass determination because
The standard e.m.f. of a galvanic cell involving cell reaction with n = 2 is found to be 0.295 V at 25ºC. The equilibrium constant of the reaction would be
The rapid change of $pH$ near the stoichiometric point of an acid base titration is the basis of indicator detection. $pH$ of the solution is related to ratio of the concentrations of the conjugate acid ($HIn$) and base $ (In^-) $ forms of the indicator given by the expression
In $BrF_3$ molecule, the lone pairs occupy equatorial positions to minimise
In a regular octahedral molecule, MX6 the number of X–M–X bonds at 180º is

The radioactive isotope \(_{27}^{60}\textrm{Co}\) which is used in the treatment of cancer can be made by (n, p) reaction. For this reaction the target nucleus is

Using anhydrous AlCl3 as catalyst, which one of the following reactions produces ethylbenzene (PhEt)

The molecular formula of diphenylmethane How many structural isomers are possible when one of the hydrogens is replaced by a chlorine atom
A solid compound 'X' on heating gives CO2 gas and a residue. The residue mixed with water forms 'Y'. On passing an excess of CO2 through 'Y' in water, a clear solution, 'Z' is obtained. On boiling 'Z', compound 'X' is reformed. The compound 'X' is
Which of the following will not form a yellow precipitate on heating with an alkaline solution of iodine
Among K, Ca Fe and Zn, the element which can form more than one binary compound with chlorine is
The enzyme which hydrolysis triglycerides to fatty acids and glycerol is called
The helical structure of protein is stabilized by
Which one of the following structures represents the peptide chain
Which one of the following monomers gives the polymer neoprene on polymerization :