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Question#1

Bond angle is 120o in NUMS2021

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Question#2

Which one of following molecule has sp hybridization?  MDCAT2019

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Question#3

According to the Lewis Concept, ammonia is an lone pair donor, therefore easily accepts a proton to form an ammonia ion as given by an equation SET2019 

\( NH_3 + H^+ \rightarrow NH_4^+ \) 

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Question#4

What will be the shape of a molecule which contain two sigma bonds and one lone pair? ETEA2016 

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Question#5

A molecule which contains two lone pairs and two bond pairs of electrons in valence shell of central atom, geometrical shape of molecule will be ETEA2019

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Categories
1.    Introduction To Fundamental
         Atomic Mass
         Empirical formula
         Molecular Formula
         Concept of Mole
         Stoichiometry
         Limiting Reactant
         Percentage yield
2.    Atomic Strcuture
         Constituents of atom
         Properties of canal rays
         Rutherford Model
         Planks Theory
         Spectrum
         Bohr Model
         Hydrogen Spectrum
         de Broglie relation
         Uncertainty principle
         Quantum Number
         Electronic configuration
4.    Liquids
         Intermolecular forces
         hydrogen Bonding
         Evaporation
         Vapor Pressure
5.    Solids
         Types of Solids
         Ionic Solids
         Covalent Solids
         Molecular Solids
         Metallic solids
         Unit Cell
         Crystal System
7.    Reaction kinetics
10.    chemical Bonding
         Valency
         Octate Rule
         Ionization Energy
         Electron affinity
         Electronegativity
         Ionic Bond
         Covalent Bond
         Polarization
         Coordinate covalent Bond
         Sigma and pi Bond
         Hydrogen Bond
         VSEPR theory
         VBT
         Hybridization
         MOT
         Dipole moment
14.    Chemistry Of Hydrocarbons
17.    Alkyl halides
         IUPAC system
         SN1 & SN2
         E1 & E2
         Nucleophile and Base
20.    Macromolecules