List of top Questions asked in NEET (UG)

An ideal gas is compressed to half its initial volume by means of several processes. Which of the process results in the maximum work done on the gas?
A mixture of gases contains $H_2$ and $O_2$ gases in the ratio of 1 : 4 (w/w). What is the molar ratio of the two gases in the mixture?
In an $S_N1$ reaction on chiral centres, there is :
A wire carrying current I has the shape as shown in adjoining figure. Linear parts of the wire are very long and parallel to . X-axis while semicircular portion of radius R is lying in Y-Z plane. Magnetic field at point O is
A parallel plate air capacitor has capacity $C$, distance of separation between plates is $d$ and potential difference $V$ is applied between the plates. Force of attraction between the plates of the parallel plate air capacitor is
Because of lanthanoid contraction, which of the following pairs of elements have nearly same atomic radii? (Numbers in the parenthesis are atomic numbers)
Consider the following compounds:
Reaction of phenol with chloroform in presence of dilute sodium hydroxide finally introduces which one of the following functional group ?
A block A of mass $m_1$ rests on a horizontal table. A light string connected to it passes over a frictionless pully at the edge of table and from its other end another block B of mass $m_2$ is suspended. The coefficient of kinetic friction between the block and the table is $\mu_k$. When the block A is sliding on the table, the tension in the string is
Two metal wires of identical dimensions are connected in series. If $\sigma_1$ and $\sigma_2$ are the conductivities of the metal wires respectively, the effective conductivity of the combination is
Consider $3^{rd}$ orbit of $He^+$ (Helium), using non-relativistic approach, the speed of electron in this orbit will be [given $ K= 9 \times 10^9$ constant, Z = 2 and h (Planck's Constant) = $6.6 \times 10^{-34} J s$]
A resistance 'R' draws power 'P' when connected to an AC source. If an inductance is now placed in series with the resistance, such that the impedance of the circuit becomes 'Z', the power drawn will be
What is the mole fraction of the solute in a $1.00\, m$ aqueous solution ?
A circuit contains an ammeter, a battery of $30\, V$ and a resistance $40.8\, ohm$ all connected in series. If the ammeter has a coil of resistance $480\, ohm$ and a shunt of $20\, ohm$, the reading in the ammeter will be
A potentiometer wire of length $L$ and a resistance $r$ are connected in series with a battery of e.m.f. $E_0$ and a resistance $r_1$ An unknown e.m.f. $E$ is balanced at a length $l$ of the potentiometer wire. The e.m.f. $E$ will be given by
A device that converts energy of combustion of fuels like hydrogen and methane, directly into electrical energy is known as
Erythropoiesis starts in
A gene showing codominance has
The term 'linkage' was coined by
Multiple alleles are present
In the following human pedigree, the filled symbols represent the affected individuals. Identify the type of given pedigree.
Which of the following layers in an antral follicle is a cellular?
In human females, meiosis-II is not completed until
How many pairs of contrasting characters in pea plants were studied by Mendel in his experiments?
Alleles are