List of top Questions asked in NEET (UG)- 2009

Globulins contained in human blood plasma are primarily involved in
Guard cells help in
If $\vec{F}$ is the force acting on a particle having position vector $\vec{r}$ and $\vec{\tau}$ be the torque of this force about the origin, then
In a Rutherford scattering experiment when a projectile of charge $Z _{1}$ and mass $M _{1}$ approaches a target nucleus of charge $Z _{2}$ and mass $M _{2}$, the distance of closest approach is $r _{0}$. The energy of the projectile is :
In the nuclear decay given below $^A_Z X \rightarrow \, ^A _{Z+1} Y \rightarrow \, ^{A-A}_{Z-1}B * \, \rightarrow \, ^{A-A}_{Z-1}B,$ the particles emitted in the sequence are
In which of the following molecules / ions $BF _{3},\,NO _{2}^{-}, NH _{2}^{-}$ and $H _{2} O$, the central atom is $sp ^{2}$ hybridized ?
Point mutation involves
Polyethylene glycol method is used for
Power dissipated in an $LCR$ series circuit connected to an a.c. source of emf $\varepsilon$ is :
Stroma in the chloroplasts of higher plant contains
Study the pedigree chart given below. What does it show?
Synapsis occurs between
T.O. Diener discovered a
The annular and spirally thickened conducting elements generally develop in the protoxylem when the root or stem is
The correct sequence of plants in a hydrosere is
The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is
The ionisation constant of ammonium hydroxide is $ 1.77 \times 10^{-5} $ at $298\, K.$ Hydrolysis constant of ammonium chloride is
The ionization energy of the electron in the hydrogen atom in its ground state is $13.6\, eV.$ The atoms are excited to higher energy levels to emit radiations of $6$ wavelengths. Maximum wavelength of emitted radiation corresponds to the transition between
The magnetic force acting on a charged particle of charge $-2 \mu C$ in a magnetic field of $2 T$ acting in y direction, when the particle velocity is is $ (2 \hat{i} + 3\hat{j}) \times 10^6 \, ms^{-1}$
The number of photo electrons emitted for light of a frequency $\upsilon$ (higher than the threshold frequency $v_0) $ is proportional to
Uric acid is the chief nitrogenous component of the excretory products of
Use of anti-histamines and steroids give a quick relief from -
What is the $ [OH^-] $ in the final solution prepared by mixing $20.0\, mL$ of $0.050\, M\, HCl$ with $30.0\, mL$ of $0.10\, M Ba(OH)_2 $ ?
When breast feeding is replaced by less nutritive food low in proteins and calories; the infants below the age of one year are likely to suffer from
Which of the following does not show optical isomerism? (en = ethylenediamine)