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

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

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.

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 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

Biological importance of ozone layer is

Cytochrome is

Darwin's theory of pangenesis shows similarity with theory of inheritance of acquired characters then what shall be correct according to it

Energy is released in nuclear fission is due to

Energy per unit volume for a capacitor having area A and separation d kept at potential difference V is given by

For the reaction, $2N_{2}O_{5} \to 4NO_{2} + O_{2}$ rate and rate constant are $1.02 \times 10^{-4}\,mol\, L^{-1} s^{-1}$ and $3.4 \times 10^{-5} s^{-1}$ respectively. The concentration of $N_{2}O_{5}$ in mol $L^{-1}$ will be

Forthcoming generation are less adaptive than the parental generation due to

Half life of radioactive element is 12.5 Hour and its quantity is 256 gm. After how much time its quantity will remain 1 gm : -

If the tension and diameter of a sonometer wire of fundamental frequency n is doubled and density is halved then its fundamental frequency will become

In preparation of alkene from alcohol using $ Al_2 O_3$, which is effective factor?

In which of the following, bond angle is maximum?

In $X - H ------Y ,X$ and $ Y$ both are electronegative elements, then