List of top Questions asked in NEET (UG)

Ionic radii are

Which one of the following can be oxidised to the corresponding carbonyl compound

Among the following, the pair in which the two species are not isostructural is

Number of chiral carbons in β–D–(+)– glucose is

In India electricity is supplied for domestic use at 220 V. It is supplied at 110 V in the USA. If the resistance of a 60W bulb for use in India is R, The resistance of a 60W bulb for use in the USA will be

In a plant, red fruit (R) is dominant over yellow fruit (r) and tallness (T) is dominant over shortness (t). If a plant with RRTt genotype is crossed with a plant that is rrtt,

Two springs of spring constants $ k_1 $ and $ k_2$ are joined in series. The effective spring constant of the combination is given by

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 one of the following is living fossil

A galvanometer of $50$ ohm resistance has $25$ divisions. $A$ current of $ 4\times 10^{-4}$ ampere gives a deflection of one division. To convert this galvanometer into a voltmeter having a range of $25$ volts, it should be connected with a resistance of

Which of the following is least reactive in a nucleophilic substitution reaction?

$CN^-$ is 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

CN– is a strong field ligand. This is due to the fact that

Which of the following coordination compounds would exhibit optical isomerism

Of the diodes shown in the following diagrams, which one of the diode is reverse biased ?

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