List of top Questions asked in NEET (UG)

Given below are two statements:
Statement I : Chromosomes become gradually visible under light microscope during leptotene stage.
Statement II : The begining of diplotene stage is recognized by dissolution of synaptonemal complex.
In the light of the above statements, choose the correct answer from the options given below:

If the mass of the bob in a simple pendulum is increased to thrice its original mass and its length is made half its original length, then the new time period of oscillation is $\frac{x}{2}$ times its original time period. Then the value of x is :

A parallel plate capacitor is charged by connecting it to a battery through a resistor. If I is the current in the circuit, then in the gap between the plates :

Select the correct statements regarding mechanism of muscle contraction.
A. It is initiated by a signal sent by CNS via sensory neuron.
B. Neurotransmitter generates action potential in the sarcolemma.
C. Increased Ca⁺⁺ level leads to the binding of calcium with troponin on action filaments.
D. Masking of active site for actin is activated.
E. Utilising the energy from ATP hydrolysis to form cross bridge.
Choose the most appropriate answer from the options given below:

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: During the transportation of gases, about 20-25 percent of $CO_2$ is carried by Haemoglobin as carbamino-haemoglobin.
Reason R: This binding is related to high p $CO_2$ and low p $O_2$ in tissues.
In the light of the above statements, choose the correct answer from the options given below

If the plates of a parallel plate capacitor connected to a battery are moved close to each other, then
A. the charge stored in it, increases.
B. the energy stored in it, decreases.
C. its capacitance increases.
D. the ratio of charge to its potential remains the same.
E. the product of charge and voltage increases.
Choose the most appropriate answer from the options given below :

Auxin is used by gardener to prepare weed-free lawns. But no damage is caused to grass as auxin

Match List I with List II :

List - I		List – II
A.	Squamous Epithelium	i.	Goblet cells of alimentary canal
B.	Ciliated Epithelium	ii.	Inner lining of pancreatic ducts
C.	Glandular Epithelium	iii.	Walls of blood vessels
D.	Compound Epithelium	iv.	Inner surface of Fallopian tubes

Choose the correct answer from the options given below :

Identify the correct description about the given figure.

Match List I with List II :

List - I		List – II
A.	B-Lymphocytes	i.	Passive immunity
B.	Interferons	ii.	Cell mediated immunity
C.	T-Lymphocytes	iii.	Produce an army of proteins in response to pathogens
D.	Colostrum	iv.	Innate immunity

Choose the correct answer from the options given below :

What do ‘a’ and ‘b’ represent in the following population growth curve?

A transcription unit in DNA is defined primarily by the three regions in DNA and these are with respect to upstream and down stream end;

Match List I with List II:

List I		List II
A	Clostridium butylicum	I	Ethanol
B	Saccharomyces cerevisiae	II	Streptokinase
C	Trichoderma polysporum	III	Butyric acid
D	Streptococcus sp.	IV	Cyclosporin-A

Choose the correct answer from the options given below:

Major products A and B formed in the following reaction sequence , are

Two slits in Young’s double slit experiment are 1.5 mm apart and the screen is placed at a distance of 1 m from the slits. If the wavelength of light used is $600 \times 10^{-9}\, \text{m}$, then the fringe separation is:

A particle executing simple harmonic motion with amplitude A has the same potential and kinetic energies at the displacement

A particle is moving along x-axis with its position ($ x $) varying with time ($ t $) as:
$ x = \alpha t^4 + \beta t^2 + \gamma t + \delta. $
The ratio of its initial velocity to its initial acceleration, respectively, is:

Match List-I with List-II :

List - I(Atom/Molecule)	List - II(Property)
(A) Nitrogen atom	(I) Paramagnetic
(B) Fluorine molecule	(II) Most reactive element in group 18
(C) Oxygen molecule	(III) Element with highest ionisation enthalpy in group 15
(D) Xenon atom	(IV) Strongest oxidising agent

Identify the correct answer from the options given below :

Which of the following set of ions act as oxidising agents?

Which of the following pairs of ions will have same spin only magnetic moment values within the pair?
A. Zn²⁺, Ti²⁺
B. Cr²⁺, Fe²⁺
C. Ti³⁺, Cu²⁺
D. V²⁺, Cu⁺
Choose the correct answer from the options given below:

Which of the following molecules has "NON ZERO" dipole moment value?

Which of the following is not an ambidentate ligand?

Which indicator is used in the titration of sodium hydroxide against oxalic acid and what is the colour change at the end point?

A uniform metal wire of length $l$ has 10 Ω resistance. Now this wire is stretched to a length $2l $ and then bent to form a perfect circle. The equivalent resistance across any arbitrary diameter of that circle is :

Choose the correct statement for the work done in the expansion and heat absorbed or released when 5 litres of an ideal gas at 10 atmospheric pressure isothermally expands into vacuum until volume is 15 litres :