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

$ABC$ is an equilateral triangle with $O$ as its centre. $\vec{F_1},\vec{F_2}$ and $\vec{F_3}$ represent three forces acting along the sides $AB, BC$ and $AC$ respectively. If the total torque about O is zero then the magnitude of $\vec{F_3}$ is

Aluminium is extracted from alumina $(Al_2O_3)$ by electrolysis of a molten mixture of

Anxiety and eating spicy food together in an otherwise normal human, may lead to

Best defined function of manganese in green plants is

Bond order of $1.5$ is shown by:

Buffer solutions have constant acidity and alkalinity because

Cirrhosis of liver is caused by the chronic intake of

Common cold differs from pneumonia in that Pneumonia

Compared to those of humans, the erythrocytes in frog are

Cymose inflorescence is present in

Deficiency of vitamin $B_1$ causes the disease

Domestic sewage of large cities

During gamete formation, the enzyme recombinase participates during

Electron in hydrogen atom first jumps from third excited state to second excited state and then from second excited to the first excited state.
The ratio of the wavelengths \(\lambda_1 : \lambda_2\) emitted in the two cases is:

Equal volumes of two monoatomic gases, A and B, at same temperature and pressure are mixed. The ratio of specific heats $(C_p/C_v)$ of the mixture will be -

Even in absence of pollinating agents seed-setting is assured in

$F _{2}$ generation in a Mendelian cross showed that both genotypic and phenotypic ratios are same as $1: 2: 1.$ It represents a case of

For its activity, carboxypeptidase requires

For real gases van der Waals equation is written as $\bigg( p + \frac{an^2}{V^2} \bigg) (V - nb) = nRT$ Where 'a' and 'b' are van der Waals constants . Two sets of gases are : (I)${ O2, CO2, H2}$ and $He$ (II) ${CH4, O2}$ and ${H2}$ The gases given in set-I in increasing order of 'b' and gases given in set-II in decreasing order of 'a', are arranged below. Select the correct order from the following :

Given the reaction between 2 gases represented by $A_2$ and $B_2$ to give the compound ${AB_{(g)}}$. ${ A_{2(g)} + B_{2(g)} <=> 2 \, AB_{(g)}}$ At equilibrium, the concentration of ${A_2 = 3.0 \times 10^{-3} \, M}$ of ${B_2 = 4.2 \times 10^{-3}\, M }$ of ${AB = 2.8 \times 10^{-3} \, M}$ If the reaction takes place in a sealed vessel at $527^{\circ} C$, then the value of $K_C$ will be :

Green revolution in India occurred during

Gymnosperms are also called soft wood spermatophytes because they lack

How many organisms in the list given below are autotrophs ? Lactobacillus, Nostoc, Chara, Nitrosomonas, Nitrobacter Streptomyces, Saccharomyces, Trypanosoma, Porphyra, Wolffia

How many plants in the list given below belongs to the Fabaceae family? Mustard, Gram, Tulip, Asparagus, Arhar, Sun hemp, Chilli, Colchicine, Onion, Moong, Pea, Tobacco, Lupin, Trifolium, Sesbania

Identify the human developmental stage shown below as well as the related right place of its occurrence in a normal pregnant woman, select the right option for the two, together. Dev elopmental - Site of occurrence stage