Ionic radii are
Inversely proportional to square of effective nuclear charge
Directly proportional to effective nuclear charge
Directly proportional to square of effective nuclear charge
Inversely proportional to effective nuclear charge
The Correct Option is D
Solution and Explanation
Top Questions on Organic Chemistry- Some Basic Principles and Techniques
- 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:- NEET (UG) - 2024
- Chemistry
- Organic Chemistry- Some Basic Principles and Techniques
- 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:- NEET (UG) - 2024
- Chemistry
- Organic Chemistry- Some Basic Principles and Techniques
- The most stable carbocation among the following is:
- NEET (UG) - 2024
- Chemistry
- Organic Chemistry- Some Basic Principles and Techniques
- The compound that will undergo SN1 reaction with the fastest rate is
- NEET (UG) - 2024
- Chemistry
- Organic Chemistry- Some Basic Principles and Techniques
- 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 :- NEET (UG) - 2024
- Chemistry
- Organic Chemistry- Some Basic Principles and Techniques
Questions Asked in NEET exam
- Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : The potential (V) at any axial point, at 2 m distance(r) from the centre of the dipole of dipole moment vector \(\vec{P}\) of magnitude, 4 × 10-6 C m, is ± 9 × 103 V.
(Take \(\frac{1}{4\pi\epsilon_0}=9\times10^9\) SI units)
Reason R : \(V=±\frac{2P}{4\pi \epsilon_0r^2}\), where r is the distance of any axial point, situated at 2 m from the centre of the dipole.
In the light of the above statements, choose the correct answer from the options given below :- NEET (UG) - 2024
- Magnetic Field
- The products A and B obtained in the following reactions, respectively, are
3ROH+PCI3→3RCI+A
ROH+PCI5→RCI+HCI+B- NEET (UG) - 2024
- Chemical Reactions
- The following are the statements about non- chordates:
A. Pharynx is perforated by gill slits.
B. Notochord is absent.
C. Central nervous system is dorsal.
D. Heart is dorsal if present.
E. Post anal tail is absent.
Choose the most appropriate answer from the options given below:- NEET (UG) - 2024
- human nervous system
- Match List I with List II:Choose the correct answer from the options given below:
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 - NEET (UG) - 2024
- Origin Of Life
- A 10 µF capacitor is connected to a 210 V, 50 Hz source as shown in figure. The peak current in the circuit is nearly (π = 3.14) :
:- NEET (UG) - 2024
- Capacitors and Capacitance
Concepts Used:
Introduction to Organic Chemistry
Organic chemistry is the branch of chemistry that involves the scientific study of organic compounds. Organic chemistry primarily deals with the structure and chemical composition of organic compounds, the physical and chemical properties of organic compounds, and the chemical reactions undergone by these compounds.
Reaction Intermediates in Organic Chemistry:
Intermediates can be understood as the first product of a consecutive reaction. For example, in a chemical reaction, if A→B and B→C, then, B can be said to be the intermediate for reaction A→C. The reactions in organic chemistry occur via the formation of these intermediates.
Reagents in Organic Chemistry:
Reagents are the chemicals that we add to bring about a specific change to an organic molecule. Any general reaction in organic chemistry can be written as:
Substrate + Reagent → Product
Where the substrate is an organic molecule to which we add the reagent. Based on the ability to either donate or abstract electrons, the reagents can be classified as:
- Electrophiles
- Nucleophiles