List of top Questions asked in NEET (UG)- 2001

Bicarpellary gynoecium and oblique ovary occurs in

In which of the following animals, haemocyanin pigment is found?

A particle is projected making an angle of 45$^{\circ}$ with horizontal having kinetic energy K. The kinetic energy at highest point will be

Which one of the following gives positive Fehling's solution test?

If the energy of a hydrogen atom in nth orbit is $E_n$, then energy in the nth orbit of a singly ionized helium atom will be

The equation of a wae is represented by $y=10^{-4} \sin \Bigg(100t -\frac{x}{10}\Bigg)m, $ then the velocity of wave will be

Which aquatic fern performs nitrogen fixation

What is true for plasmid

Ionisation constant of $ CH_3COOH $ is $ 1.7 \times 10^{-5} $ and concentration of $ H^+ $ ions is $ 3.4 \times 10^{-4} $ . Then, find out initial concentration of $ CH_3COOH $ molecules.

A black body has wavelength $\lambda_m$ corresponding to maximum energy at 2000 K. Its wavelength corresponding to maximum energy at 3000 K will be:

Two waves having equation $x_1=a \sin(\omega t-kx+\phi_1),$ $ x_2=a \sin (\omega t-kx +\phi_2)$ If in the resultant wave the frequency and amplitude remain equal to amplitude of superimposing waves, the phase difference between them is

What is the eye of potato?

An organic compound $A(C_4 H_9 C1)$ on reaction with Na/diethyl ether gives a hydrocarbon which on monochlorination gives only one chloro derivative, then A is

A 1 kg stationary bomb is exploded in three parts having mass $1 : 1 : 3$ respectively. Part having same mass move in perpendicular direction with velocity 30 m/s, then the velocity of bigger part will be

In Hydra, waste material of food digestion and nitrogenous waste material are removed respectively from

Which is correct pair for edible part?

A compound of molecular formula $C_7H_{16}$ shows optical isomerism, compound will be

Standard electrode potentials for Fe electrode are given as $Fe^{2+}+2e^{-} \rightarrow Fe ; E^{o}=-0.44 V$ $Fe^{3+}+e^{-} \rightarrow Fe^{2+}; E^{o}=+0.77 V$ $ Fe^{2+}, Fe^{3+}$ and Fe blocks are kept together then

Pure water can be obtained from sea water by

Which of the following is correct statement?

Which of the following is correct about $H$-bonding in $DNA$?

A dipole of dipole moment $ \overrightarrow{ p} $ is placed in uniform electric field $ \overrightarrow{ E}$ then torque acting on it is given by

A scientist says that the efficiency of his heat engine which work at source temperature $127^{\circ } C $ and sink temperature $27^{\circ} C $ is $26\% ,$ then

Adventive embryony in Citrus is due to

Anemophily type of pollination is found in