List of top Questions asked in NEET (UG)- 2013

A gas is taken through the cycle A⇢B⇢C⇢A ,as shown. What is the net work done by the gas?

Nylon is an example of

6.02 × 10²⁰ molecules of urea are present in 100 mL of its solution. The concentration of solution is

A body of mass w taken from the earth's surface to the height equal to twice the radius (R) of the earth. The change in potential energy of body will be

The condition under which a microwave oven heats up a food item containing water molecules most efficiently is

For a normal eye, the cornea of eye provides a converging power of 40 D and the least converging power of the eye lens behind the comes is 20 D. Using this information, the distance between the retina and the comea-eye lens can be estimated to be

At 25°C molar conductance of 0.1 molar aqueous solution of ammonium hydroxide is 9.54 ohm^-1 cm² mol^-1 and at infinite dilution its molar conductance is 238 ohm^-1 cm² mol^-1. The degree of ionisation of ammonium hydroxide at the same concentration and temperature is

In an experiment four quantities a, b, c and d are measured with percentage error 1%, 2%, 3% and 4% respectively. Quantity P is calculated as follows: P= $\frac{a^3 b^2}{cd}$ % error in P is

In Young's double slit experiment, the slits are 2 mm apart and are illuminated by photons of two wavelengths, $λ_1$ =12000 Å and $λ_2$= 10000 Å. At what minimum distance from the common central bright fringe on the screen 2 m from the slit will a bright fringe from one interference patter coincide with a bright fringe from the other?

Which is the strongest acid in the following ?

Which of these is not a monomer for a high molecular mass silicone polymer ?

Nitrobenzene on reaction with conc. HNO₃/H₂SO4 at 80-100°C forms which one of the following products ?

Which is the monomer of Neoprene in the following ?

A uniform force of $(3\hat{i}+\hat{j}) $newton acts on a particle of mass 2 kg. Hence the particle is displaced from position $(2\hat{i}+\hat{k})$ metre to position $(4\hat{i}+3\hat{j}-\hat{k})$ metre. The work done by the force on the particle is

Meiosis takes place in

The foetal ejection reflex in humans triggers the release of

The reddish appearance of the sun at sunrise and sunset is due to

Interfascicular cambium develops from the cells of

During seed germination its stored food is mobilized by

Which of the following Bt crops is being grown in India by the farmers?

A good producer of citric acid is

The colonies of recombinant bacteria appear white in contrast to blue colonies of non-recombinant bacteria because of

Which of the following represent maximum number of species among global biodiversity ?

Match the name of the animal (Column I) with one characteristics (Column II) and the phylum/class (column III) to which it belongs.

	Column I	Column II	Column III
(1)	Petromyzon	Ectoparasite	Cyclostomata
(2)	Ichthyophis	Terrestrial	Reptilia
(3)	Limulus	Body covered by chitinous exoskeleton	Pisces
(4)	Adamsia	Radially symmetrical	Porifera

Which one of the following organelle in the figure correctly matches with its function ?