List of top Chemistry Questions on Organic Chemistry - Some Basic Principles and Techniques asked in NEET (UG)

The compound that will undergo SN1 reaction with the fastest rate is
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

Choose the correct answer from the options given below:
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

Choose the correct answer from the options given below:
The most stable carbocation among the following is:
Given below are two statements :
Statement I : The boiling point of three isomeric pentanes follows the order
n-pentane > isopentane > neopentane
Statement II : When branching increases, the molecule attains a shape of sphere. This results in smaller surface area for contact, due to which the intermolecular forces between the spherical molecules are weak, thereby lowering the boiling point.
In the light of the above statements, choose the most appropriate answer from the options given below :
The correct IUPAC name of the following compound is

The dihedral angle of the least stable conformer of ethane is

Which one of the following polymers is prepared by addition polymerization

An organic compound contains 78% (by wt.) carbon and the remaining percentage of hydrogen. The right option for the empirical formula of this compound is : [Atomic wt. of C is 12, H is 1]

Ethylene diaminetetraacetate (EDTA) ion is

Match List - I with List - II.

List - I

List - II 

(a)(i)Hell-VolhardZelinsky reaction
(b)(ii)Gattermann-Koch reaction
(c)(iii)Haloform reaction 
(d)(iv)Esterification

Choose the correct answer from the options given below.

The product formed in the following chemical reaction is:

chemical reaction

Given below are two statements : 
Statement I: Aspirin and Paracetamol belong to the class of narcotic analgesics. 
Statement II: Morphine and Heroin are non-narcotic analgesics. 
In the light of the above statements, choose the correct answer from the options given below
A tertiary butyl carbocation is more stable than a secondary butyl carbocation because of which of the following ?
Conjugate base for Brönsted acids \(H_2O\) and \( HF\) are
The number of \(\sigma \)and \(\pi\) bonds in pent-2-en-4-yne is: 
Among the following, the reaction that proceeds through an electrophilic substitution, is:
Which of the following carbocations is expected to be most stable ?
Which of the following molecules represents the order of hybridisation $sp^2 , sp^2, sp, sp$ from left to right atoms ?
Which of the following is correct with respect to $- I$ effect of the substituents ? $(R =$ alkyl $)$
Which of the following reactions is appropriate for converting acetamide to methanamine?
Which among the given molecules can exhibit tautomerism?
tautomerism
Consider the following compounds:
In the Kjeldahl's method for estimation of nitrogen present in a soil sample, ammonia evolved from $0.75\, g$ of sample neutralized $10\, mL$ of ${1 \, M \, H_2SO_4}$. The percentage of nitrogen in the soil is :
Nitrogen detection in an organic compound is carried out by Lassaigne's test. The blue colour formed corresponds to which of the following formulae ?