List of top Questions asked in NEET (UG)

Match List I with List II

List-I (Process)		List-II  (Conditions)
(A)	Isothermal process	(I)	No heat exchange
(B)	Isochoric process	(II)	Carried out at constant temperature
(C)	Isobaric process	(III)	Carried out at constant volume
(D)	Adiabatic process	(IV)	Carried out at constant pressure

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Fehling’s solution ‘A’ is

A compound with a molecular formula of C₆H₁₄ has two tertiary carbons. Its IUPAC name is:

In which of the following equilibria, K_p and K_e are NOT equal?

Identify the correct reagents that would bring about the following transformation.

The reagents with which glucose does not react to give the corresponding tests/products are
A. Tollen's reagent
B. Schiff's reagent
C. HCN
D NH₂OH
E. NaHSO₃
Choose the correct options from the given below:

The E° value for the Mn³⁺/Mn²⁺ couple is more positive than that of Cr³⁺/Cr²⁺ or Fe³⁺/Fe²⁺ due to change of

Among Group 16 elements, which one does NOT show -2 oxidation state?

The highest number of helium atoms is in

Spin only magnetic moment is same for which of the following ions?
A. T³⁺
B. Cr²⁺
C. Mn²⁺
D. Fe²⁺
E. Se³⁺
Choose the most appropriate answer from the options given below

Match List I with List II

List-I (Quantum Number)		List-II  (Information provided)
(A)	mI	(I)	Shape of orbital
(B)	ms	(II)	Size of orbital
(C)	I	(III)	Orientation of orbital
(D)	n	(IV)	Orientation of spin of electron

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Which reaction is NOT a redox reaction?

In which of the following processes entropy increases?
A. A liquid evaporates to vapour.
B. Temperature of a crystalline solid lowered from 130 K to 0 K.
C. 2NaHCO₃(s) → Na₂CO₃(s)+CO₂(g)+H₂O(g)
D. Cl₂(g) → 2Cl(g)
Choose the correct answer from the options given below:

The energy of an electron in the ground state (n=1) for He⁺ ion is -xJ, then that for an electron in n=2 state for Be³⁺ ion in J is:

Which plot of ln k vs \(\frac{1}{T}\) is consistent with Arrhenius equation?

Match List I with List II

List-I (Compound)		List-II (Shape/geometry)
(A)	NH3	(I)	Trigonal Pyramidal
(B)	BrF5	(II)	Square Planar
(C)	XeF4	(III)	Octahedral
(D)	SF6	(IV)	Square Pyramidal

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Match List I with List II

List-I (Complex)		List-II (Type of isomerism)
(A)	[Co(NH3)5(NO2)]Cl2	(I)	Solvate isomerism
(B)	[Co(NH3)5(SO4)]Br	(II)	Linkage isomerism
(C)	[Co(NH3)6] [Cr(CN)6]	(III)	Ionization isomerism
(D)	[Co(H2O)6]Cl3	(IV)	Coordination isomerism

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Match List I with List II

List-I (Conversion)		List-II  (Shape/geometry)
(A)	1 mol of H2O to O2	(I)	3F
(B)	1 mol of MnO-4 to Mn2+	(II)	2F
(C)	1.5 mol of Ca from molten CaCl2	(III)	1F
(D)	1 mol of FeO to Fe2O3	(IV)	5F

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Arrange the following elements in increasing order of electronegativity:
N, O, F, C, Si
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Given below are two statements:
Statement I: Aniline does not undergo Friedel-Crafts alkylation reaction.
Statement II: Aniline cannot be prepared through Gabriel synthesis.
In the light of the above statements, choose the correct answer from the options given below

Activation energy of any chemical reaction can be calculated if one knows the value of

The most stable carbocation among the following is:

Arrange the following elements in increasing order of first ionization enthalpy:
Li, Be, B, C, N
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Which one of the following alcohols reacts instantaneously with Lucas reagent?