List of top Questions asked in NEET (UG)

Phosphoric acid ionizes in three steps with their ionization constant values $ K_1 $, $ K_2 $, and $ K_3 $, respectively, while $ K $ is the overall ionization constant.
Which of the following statements are true?

Sugar ‘X’:
A. is found in honey.
B. is a keto sugar.
C. exists in $\alpha$ and $\beta$ anomeric forms.
D. is laevorotatory.
‘X’ is:

How many products (including stereoisomers) are expected from monochlorination of the following compound?
$CH_3-CH-CH_2-CH_3$

A horizontal force 10 N is applied to a block 4 as shown in figure. The mass of blocks A and B are 2 kg and 3 kg, respectively. The blocks slide over a frictionless surface. The force exerted by block A on block B is:

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R :
Assertion A : Breast-feeding during initial period of infant growth is recommended by doctors for bringing a healthy baby.
Reason R : Colostrum contains several antibodies absolutely essential to develop resistance for the new born baby.
In the light of the above statements, choose the most appropriate answer from the options given below :

Match List I with List II:

List I		List II
A	Mesozoic Era	I	Lower invertebrates
B	Proterozoic Era	II	Fish & Amphibia
C	Cenozoic Era	III	Birds & Reptiles
D	Paleozoic Era	IV	Mammals

Choose the correct answer from the options given below:

1 gram of sodium hydroxide was treated with 25 ml. of 0.75 M HCI solution, the mass of sodium hydroxide left unreacted is equal to

Match List I with List II :

List - I Organisms		List – II Mode of Nutrition
A.	Fleming	i.	Disc shaped sacs or cisternae near cell nucleus
B.	Robert Brown	ii.	Chromatin
C.	George Palade	iii.	Ribosomes
D.	Camillo Golgi	iv.	Nucleus

Choose the correct answer from the options given below :

Consider the following statements :
A. Annelids are true coelomates
B. Poriferans are pseudocoelomates
C. Aschelminthes are acoelomates
D. Platyhelminthes are pseudocoelomates
Choose the correct answer from the options given below :

A thin spherical shell is charged by some source. The potential difference between the two points C and P (in V) shown in the figure is:
(Take \(\frac{1}{4}\pi\epsilon_0 = 9 × 109\)\(\frac{1}{4\pi\epsilon_0}=9\times10^9\) SI units)

If \(x=5\sin(\pi i+\frac{\pi}{3})m\) represents the motion of a particle executing simple harmonic motion, the amplitude and time period of motion, respectively, are :

Given below are two statements :
Statement I : Glycogen is similar to amylose in its structure.
Statement II : Glycogen is found in yeast and fungi also.
In the light of the above statements, choose the correct answer from the options given below :

Mass in grams of copper deposited by passing 9.6487 A current through a voltmeter containing copper sulphate solution for 100 seconds is (Given : Molar mass of Cu : 63 g mol^–1 , 1 F = 96487 C)

The graph which shows the variation of \(\big(\frac{1}{\lambda^2} \big)\)and its kinetic energy, is \(E\) (where \(λ\) is de Broglie wavelength of a free particle):

A logic circuit provides the output y as per the following truth table:

A	B	Y
0	0	1
0	1	0
1	0	1
1	1	0

The expression for the output Y is:

In an ideal transformer, the turns ratio is \(N_p/N_s\) =1/2 .The ratio \(V_S:V_P\)  is equal to (the symbols carry their usual meaning):

A bob is whirled in a horizontal plane by means of a string with an initial speed of ω rpm. The tension in the string is T. If speed becomes 2ω while keeping the same radius, the tension in the string becomes:

Match List I with List II.

List I (Material)		List II (Subsceptibility(χ))
A.	Diamagnetic	I.	χ = 0
B.	Ferromagnetic	II.	0 > χ ≥ –1
C.	Paramagnetic	III.	χ >> 1
D.	Non-magnetic	IV.	0 < χ < ε (a small positive number)

Choose the correct answer from the options given below:

Match List I with List II

	List-I		List-II
A	Rhizopus	I	Mushroom
B	Ustilago	II	Smut fungus
C	Puccinia	III	Bread mould
D	Agaricus	IV	Rust fungus

Choose the correct answer from the options given below

The mass of a planet is \(\frac{1}{10}\)th that of the earth and its diameter is half that of the earth. The acceleration due to gravity on that planet is :

Given below are two statements:
Statement I: Mitochondria and chloroplasts both double membranes bound organelles. 
Statement II: Inner membrane of mitochondria is relatively less permeable, as compared chloroplast. I
In the light of the above statements, choose the mis appropriate answer from the options given below