SEARCH
You are in browse mode. You must login to use MEMORY

   Log in to start

CHEMICAL BONDING


🇬🇧
In English
Created:


Public
Created by:
INTP


5 / 5  (1 ratings)



» To start learning, click login

1 / 25

[Front]


sp
[Back]


LINEAR

Practice Known Questions

Stay up to date with your due questions

Complete 5 questions to enable practice

Exams

Exam: Test your skills

Test your skills in exam mode

Learn New Questions

Dynamic Modes

SmartIntelligent mix of all modes
CustomUse settings to weight dynamic modes

Manual Mode [BETA]

The course owner has not enabled manual mode
Specific modes

Learn with flashcards
Complete the sentence
Listening & SpellingSpelling: Type what you hear
multiple choiceMultiple choice mode
SpeakingAnswer with voice
Speaking & ListeningPractice pronunciation
TypingTyping only mode

CHEMICAL BONDING - Leaderboard

1 user has completed this course

No users have played this course yet, be the first


CHEMICAL BONDING - Details

Levels:

Questions:

61 questions
🇬🇧🇬🇧
Sp
LINEAR
Sp2 - 0 lp
TRIAGONAL PLANAR
Sp2 - 1lp
Bent shape /V shape
Sp3- 0 lp
TETRAHEDRAL
Sp3 - 1 lp
TRIAGONAL PYRAMIDAL
Sp3 - 2lp
Bent / angular/ v shape
Sp3 - 1lp
TRIAGONAL PYRAMIDAL
Sp3d - 0lp
TRIAGONAL BYPYRAMIDAL
Sp3d - 1lp
SEE SAW SHAPE
Sp3d - 2lp
BENT T SHAPE
Sp3d2 - 0lp
OCTAHEDRAL
Sp3d2 -1lp
SQUARE PYRAMIDAL
Sp3d2- 2 lp
SQUARE PLANAR
Sp3d3 -0lp
PENTAGONAL BIPYRAMIDAL
Sp3d3- 1lp
DISTORTED OCTAHEDRAL
Sp3d3 - 2lp
PENTAGONAL PLANAR
Lattice enthalpy or lattice energy
Amount of energy released when 1mole of solid ionic compound is formed from its constituent gaseous atoms
Two factors affecting lattice energy
Product of charges inverse of distance between two charges
Enthalpy of formation definition
Energy change when one mole of compounds is formed from its constituent elements
Role of born haber cycle
Explains formation of ionic compounds in terms of energy
Can enthalpy of formation be negative?
Yes, cuz formation of some compounds is not spontaneous-- they absorb energy and, hence, del.H is positive - spontaneous, release energy- delta h negative
Favourable conditions for formation of ionic compound
Del f H should be negative- i.e- BDE, SE IE should be low- as they are positive values and, L.E , del. eg H -- high
Ionic solids are... (color) (state)
White, crystalline solid
Do ionic compounds show isomerism, why?
No, they are non directional
Why IC have high mp and bp
Strong forces of attraction
Why are ic brittle?
When one layer slides over other- same type of chrges over each other- repulsion- breaks
Meaning of dielectric constant
Solvent ne dissolving compound ke electrostatic force of attraction ko E times weak kar diya
Process of hydration
Solvation in water
Hypovalent species vs hypervalent species
Sharing ke baad 8 e se kam vs. sharing ke baad 8 e se jyada
Instances of failure of law of octet
1. H 2. hypo and hypervalent 3. odd e- mol. 4. inert gases forming compounds
Concepts (2) in valence bond theory
Concept of overlapping concept of hybridization
Concept of overlapping
Based on energy minimization tendency of a system- not octet
Benefit of overlapping
E- cloud do nucleus ke command mein hain - attraction increases - energy further decreases therefore bond more stable
Overlapping continues till
A sweet spot of maximum energy is reached
Axial vs collateral overlapping in s-s vs p-p
Axial- internuclear axis ke along collateral- internuclear axis ke upar neeche
Overlapping orbitals should have... symmetry
Same symmetry ++ or -- not +- ....apavitra rishta SUM 0
FAILURE OF overlapping
Failed to explain poluatomic molecules like- CH4 - all symmetrical even though one 2s1s and other three 2p1s - all bond angle and bond length same(shouldnt be acc to overlapping)
Launch of hybridisation
Redistribution of energy- hybrid orbitals- to explain polyatomic mol. - poly at mol- hybridisation ke baad hi overlap hota hai
Hybridisation defn
When orbitals of diff energies intermix and redistribute their energies to form orbitals of similar energy its called hybridisation and new orbitals - hybrid orbitals
Type of hyb.=
No of surrounding atoms + no of lone pairs on the central atom
,....(a/e) feel more repn and whY?
Each eq. bond is repelled by three axial bonds while each axial bond is repelled by three equitorial bonds - axial bonds feel more repn. - BS dec, and BL inc
In ether bond(ROR) angle b/n two R-R groups is... and why
110 deg greater than b/w two lp cuz of steric hindrance same with ncl3 and NBr3
Pi bond should be kept on ...(a/e)
Equitorial to minimize pi-pi or sigma-pi repulsion
Why SiO2 has different structure from CO2
Sp3 in SiO2 vs sp in CO2 cuz co2 small discrete molecule while silica a giant lattice