List of top Questions asked in NEET (UG)- 2012

Identify the meiotic stage in which the homologous chromosomes separate while the sister chromatids remain associated at their centromeres
If $v_e$ is escape velocity and $v _o$ is orbital velocity of a satellite for orbit close to the earth's suface, then these are related by
If voltage across a bulb rated $220 \,V$- $100\, W$ drops by $2.5\%$ of its rated value, the percentage of the rated value by which the power would decrease is
In a coil of resistance 10 Ω, the induced current developed by changing magnetic flux through it, is shown in figure as a function of time. The magnitude of change in flux through the coil in weber is
In a coil of resistance 10 Ω, the induced current developed by changing magnetic flux through it, is shown in figure as a function of time.
In gobar gas, the maximum amount is that of
In the five kingdom classification, Chlamydomonas and Chlorella have been included in
In which of the following compounds, nitrogen exhibits highest oxidation state ?
Low spin complex of $d^6$-cation in an octahedral field will have the following energy :
Read the following four statements (A - D). (A) Colostrum is recommended for the new born because it is rich in antigens. (B) Chikungunya is caused by a Gram negative bacterium. (C) Tissue culture has proved usefiil in obtaining virus-free plants. (D) Beer is manufactured by distillation of fermented grape juice. How many of the above statements are wrong?
Read the following four statements (A - D). (A) In transcription, adenosine pairs with uracil. (B) Regulation of lac operon by repressor is referred to as positive regulation. (C) The human genome has approximately 50,000 genes. (D) Haemophilia is a sex-linked recessive disease. How many of the above statements are right?
Read the following statements (a - e) and answer as asked (a) In Equisetum, the female gametophyte is retained on the parent sporophyte (b) In Ginkgo, male gametophyte is not independent (c) The sporophyte in Riccia is more developed than that in Polytrichum (d) Sexual reproduction in Volvox is isogamous (e) The spores of slime moulds lack cell walls How many of above statements are correct
Standard enthalpy of vapourisation $\Delta_{\text {vap }} H ^{\Theta}$ for water at $100^{\circ} C$ is $40.66\, kJ\, mol ^{-1}$. The internal energy of vaporisation of water at $100^{\circ} C$ (in $kJmol ^{-1}$) is : (Assume water vapour to behave like an ideal gas)
The coconut water and the edible part of coconut are equivalent to
The common bottle cork is a product of
The correct order of decreasing acid strength of trichloroacetic acid (A), trifluoroacetic acid (B), acetic acid (C) and formic acid (D) is
The damping force on an oscillator is directly proportional to the velocity. The units of the constant of proportionality are
The dimension of $\left(\mu_{0} \in_{0}\right)^{-1 / 2}$ are :
The electric field associated with an e. $m$. wave in vacuum is given by $\vec{ E }=\hat{ i } 40 \cos \left( kz -6 \times 10^{8} t \right)$, where $E , z$ and $t$ are in volt $/ m$, meter and seconds respectively. The value of wave vector $k$ is :
The input resistan ce o f a silicon transistor is $100 \,\Omega$ B a se current is changed by $40 \,\mu A$ which results in a change in collector currently by $2 \,m A$ . This transistor is used as a comm on emitter amplifier with a load resistance o f $4 \,k\Omega$ The voltage gain o f the amplifier is
The instantaneous values of alternating current and voltages in a circuit are given as $i=\frac{1}{\sqrt2}\sin(100\pi t)$ ampere $e=\frac{1}{\sqrt2}\sin(100\pi t+\frac{\pi}{3})$ Volt . The average power in watts consumed in the circuit is
The magnifying power of a telescope is $9.$ When it is adjusted for parallel rays the distance between the objective and eyepiece is $20\, cm.$ The focal length of lenses are
The maximum amount of electrolytes and water ($70 - 80$ percent) from the glomerular filtrate is reabsorbed in which part of the nephron?
The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are the ones categorised as
The motion of a particle along a straight line is described by equation $ x = 8 + 12t - t^3 $ where $x$ is in metre and $t$ in second. The retardation of the particle when its velocity becomes zero is
The pair of species with the same bond order is