List of top Questions asked in NEET (UG)

Haemoglobin contains 0.33% of iron by weight. The molecular weight of haemoglobin is approximately 67200 g. The number of iron atoms (at. weight of Fe is 56) present in one molecule of haemoglobin are
The number of antibonding electron pairs in $O_2^{2-}$ molecular ion on the basis of molecular orbital theory is (at. no. of $O$ is $18$)
The percentage weight of Zn in white vitriol [ZnSO4. 7H2O] is approximately equal to (at. mass of Zn= 65, S=32, 0=16 and H= 1)
Which one of the following elements constitutes a major impurity in pig iron?
A vehicle, with a horn of frequency n is moving with a velocity of 30 m/s in a direction perpendicular to the straight line joining the observer and the vehicle. The observer perceives the sound to have a frequency $n+n_1$. Then (if the sound velocity in air is 300 m/s)
The lower jaw in mammals is made up of
Crossing over in diploid organism is responsible for
Complete the equation for the following fission process $_{92}U^{235}+_0n^1 \, \rightarrow _{38}Sr^{90} +.......$
The total number of possible isomers for the complex compound $[Cu^{II}(NH_3)_4] [Pt^{II}Cl_4] $ are
A standing wave having 3 nodes and 2 antinodes is formed between two atoms having a distance $1.21$ $�$ between them. The wavelength of the standing wave is
Glucose reacts with X number of molecules of phenyl hydrazine to yield osazone. The value of $ X $ is
The enormous diversity of protein molecules is due mainly to the diversity of
Which of the following compounds is not chiral ?
A one litre flask is full of brown bromine vapours. The intensity of brown colour of vapours will not decrease appreciably on adding to the flask some
In $ PO_{4}^{3-} $ ion, the formal charge on each oxygen atom and $P-O$ bond order respectively are :
Two simple pendulums of length 5 m and 20 m respectively are given small linear displacement in one direction at the same time. They will again be in the phase when the pendulum of shorter length has completed - oscillations.
Which of the following is not the main function of lymph glands?
The functional unit of contractile system in a striated muscle is
Total number of bones in each limb of a man is
In the developmental history of mammalian heart, it is observed that it passes through a two chambered fish like heart, three chambered frog like heart and finally four chambered stage To which hypothesis can this above cited statement be approximated ?
A particle, with restoring force proportional to displacement and resisting force proportional to velocity is subjected to a force F sin $\omega t$. If the amplitude of the particle is maximum for $\omega = \omega_1$ and the energy of the particle maximum for $ \omega = \omega_2$, then
Which one of the following is a protein deficiency disease?
A mass of $1 \,kg$ is suspended by means of a thread. The system is (i) lifted up with an acceleration of $4.9 \,m$ $s^{-2}$ (ii) lowered with an acceleration of $4.9 \,m$ $s^{-2}$ . The ratio of tension in the first and second case is
When a cell is frilly turgid, which of the following will be zero?
What is common among amylase, rennin and trypsin?