1(a) Differentiate between the following (i) Fractional distillation and simple distillation (ii) Filtration and decantation (iii) Sublimation and evaporation (b) Given a mixture of sodium chloride, ammonium chloride and sand, explain how you will go about separating the mixture to obtain each component in the pure form
1. In IUPAC nomenclature the parent chain is determined by the number of carbon atoms in_______ (a) a straight chain (b) the longest continous carbon atom (c) the side chain (d) the substituents 2. Cis-alkenes are obtained by hydrogenation of alkynes with _____ catalyst (a) hydration (b) Lindlar (c) Tollen's (d) Vicinal. 3. The following are examples of addition reactions of alkenes EXCEPT (a) hydration (b) hydrohalogenation (c) ozonolysis (d) hydrogenation 4. Addition of HBr to propene in th...
Intrduction Atomic Theory of Matter Discovery of the Sub-Atomic Particles The Electron The Proton Rutherford Model of Atom The Neutron Atomic Number/ Mass Number/ Isotopes Emission Spectra The Bohr Atomic Model Atomic Spectrum of Hydrogen Quantum Theory of Atomic Orbitals Shapes of Orbitals Electronic Confiuration of Atom The Periodic Table Description of the Periodic Table What is Ionization Energy Electron Affinity Electronegativity Electrovalent (ionic) Bonding The Chemical Bonds Structure...
INSTRUCTIONS: (a) Attempt all questions (b) Write the correct answers only (c) Constants: 1nm = 10-9m, h=6.625 x 10-34Js and c = 3 x 108m/s, R = 3.289 x 1015Hz (d) H = 1, C= 12, O= 16, Na = 23, N=14, Ca=40, Cl=35.5 1. Write a balanced equation for tetraoxosulphate (vi) acid and sodium hydroxide 2. 25cm3 of hydrochloric acid was titrated against 20cm3 of sodium hydroxide solution that contains 2.30g in 250cm3. Calculate the concentration of the acid in mole/dm3 3. Calculate (i) Concentration o...
UNIT : 11 CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
INTRODUCTION ALLOSTERIC REGULATION CASE OF ATCASE COVALENT MODIFICATION CASE OF GLYCOGEN PHOSPHORYLASE ISOZYMIC REGULATION PROTEOLYTIC ACTIVATION CASE OF TRYPSIN GENETIC CONTROL OPERON REPRESSION INDUCTION
Gas Gas Law Real Gas Postulate of Kinetic Molecular Theory of Gases
Disinfection Sterilization Chemical Disinfectant Alcohols Hypochlorites Chlorine Phenol Mechanism of Action Non ionizing radiations
Vapour pressure Boiling point Freezing point Osmotic pressure
Step 1. Determine the total number of valence electrons. Step 2. Write the bond skeleton - Placement of atoms relative to each other Step 3. Draw a single bond from each surrounding atom to the central atom, and subtract 2e− for each bond from the total to find the number of e− remaining Step 4. Distribute the remaining electrons in pairs so that each atom ends up with 8e− (or 2e− for H) Step 5. Change a lone pair to a bonding pair if you run out of electrons before making all atoms HAPPY
Quantum Numbers and Atomic Orbitals Writing Electron Configurations Properties of Monatomic Ions
CHEM 102 Past Questions Compressed
1. Methyl ethyl ether can be represented by ________________________ a. CH3CH2COOCH b. CH3COCHOCH3 c. CH3CH2COCH3 d. CH3OCCH3 2. Butan-1-ol will react with PCl5 to give an effervescence of ___________________________ a. water b. hydrogen chloride c. butanal d. butanol 3. H3C C=O NH2NH2 n(CH3)2C=NNH2 a. (CH3)2C=NOH b. (CH3)2C=NNH2 c. (CH3)2C-NOH H3C ...
Coordination Compounds/ComplexesIsomerism in ComplexesPreparation and Reaction of ComplexesTheories of Structure and BondingPhysical Methods of Structural InvestigationThermodynamic Stability and Reaction of Complex
Integrated LawsKinetic ModelsElementary ReactionsComplex ReactionsCatalysisPhotochemistryIntegrated Rate Laws