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CHEMISTRY

CHAPTER ONE: INTRODUCTION TO CHEMISTRY

013 Q. Write any one contribution of each of the following scientists towards the development of chemistry.

(i) J.J Thomson (ii) Mendeleev (iii) Rutherford.012 Q. Define (i) Polymeric chemistry (ii) Environmental chemistry (iii) Analytical chemistry011 Q.1) Define Chemistry and write the names of any four branches of chemistry?

Q.2) What is scientific method? Define hypothesis and theory?010 Q. Name three scientific of the modern period and write one contribution of each in the field of chemistry?009 Q.1) Write the names of any six branches of chemistry?

Q.2) Write three significant for studying chemistry?

CHAPTER TWO: CHEMICAL COMBINATION

013

Q.1) Define Double Displacement reactions and give one example?

Q.2) State the Law of Reciprocal Proportional and explain it with the help of an example?012 Q.1) What is Chemical reaction? Define and give one example of each of the following.

(i) Single displacement reaction (ii) Decomposition reaction.

Q.2 Calculate the number of moles in 40 g of water?

Q.3) Define Avogadro number?

Q.4) Define Landolt Experiment with labelled diagram for practical verification of law of conservation ofmass?

Q.5) State the law of constant composition with one example?

011 Q.1) Define Addition reaction and give its one example?Q.2) Define (i) Mole (ii) Avogadros number (iii) Empirical formula?

Q.3) State the law of multiple proportions and explain it with the help of an example?Q.4) Define Mole. Calculate number of moles in 50 g of H2O?

010 Q.1 Define the following types of chemical reactions and give one example of each of them chemicalequation. (i) Decomposition reaction (ii) Single Displacement Reaction (iii) Combustion Reaction?

Q.2) State the following. (i) Law of Constant Composition (ii) Law of Multiple Proportion?009 Q.1) State the following laws. (i) Law of Conservation of mass. (ii) Law of Constant Composition (iii) Law

of Reciprocal Proportion?

Q.2) Sate the law of Multiple Proportions and explain it with the help of an example?

CHAPTER THREE: ATOMIC STRUCTURE

013 Q.1) ?Calculate the number of neutrons in the following isotopes.(i) 17Cl

37(ii) 32Pb

207(iii) 92U

235

Q.2) Write three properties of Cathode rays?012 Q.1) Name three types of radioactive rays and write one characteristics of each?

Q.2) Define Isotopes?

011 Q.1) Calculate the number of neutrons in the following isotopes?(i) 8C

12(ii) 6C

13(iii) 6C

14

Q.2) Write threepostulates of Daltons Atomic Theory?

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Q.3) Describe Rutherfords experiment which led him to the discovery of the neutrons of an atom?

010 Q.) Name three types of radioactive rays and write one characteristics of each?009 Q.1) ) Calculate the number of neutrons in the following isotopes?

(i) 8C16

(ii) 8C17

(iii) 8C18

Q.2) Describe Rutherfords experiment which led him to the discovery of the neutrons of an atom?

CHAPTER FOUR: PERIODICITY OF ELEMENTS

013 Q.1) Which element have zero valency? In which group of the periodic table? Also state why have theybeen placed? Also give their two examples?

Q.2) How many periods and groups are there in the modern periodic table? Also state what are Lanthanides

and Actinides?012 Q.1) Which elements passes only one electrons in their valence shell? What are they called? Name the

radioactive element of this group?

Q.2) Define: (i) Periodicity (ii) Metal (iii) Non-metal (iv) Metalloids?Q.3) What are Transition Elements? Write any three properties of Transition Elements?

011 Q.1) State the following laws: (i) Doberiener Law of Triads (ii) Newland Law of Octaves (iii) ModernPeriodic Law?

Q.2) Write three difference between Metals and Non-metals?Q.3) Define: (i) Electronegativity (ii) Atomic Radius (iii) Ionization Energy (iv) Metalloid

Q.4) Write three general properties of Alkali metals?

Q.5) What are Transition Elements? Write any three general properties of Transition Elements?

010 Q.1 What are Transition Elements? Write any three general properties of Transition Elements?Q.2) Define Newland Law of Octave?

Q.3) Write four points of physical difference between Metals and Non-metals?009 Q.1) State the following laws: (i) Doberiener Law of Triads (ii) Newland Law of Octaves (iii) Modern

Periodic Law?Q.2) Write three general characteristics of Transition Elements?

Q.3) Which elements possess seven elements that has highest electronegativity and give its value?

Q.4) Define: (i) Metal (ii) Non-metal (iii) Metalloids

CHAPTER FIVE: CHEMICAL BONDING

013 Q.1) Write three difference between Covalent Bond and Co-ordinate Covalent Bond?Q.2) What is ionic bond? How an ionic bond is formed between Sodium and Chlorine atoms resulting in theproduction of NaCl. Explain?

012 Q.1) Define: (i) Ionic Bond (ii) Chemical BondQ.2) Write three difference between Covalent Bond and Co-ordinate Covalent Bond?

Q.3) Write any three characteristics of Ionic Compounds?

Q.4) Write down three common properties of Covalent Compounds?Q.5) Define Covalent Bond. Explain Polar Covalent Bond and Non-polar Covalent Bond?

011 Q.1) Write three difference between Ionic Bond and Covalent Bond?Q.2) What is Co-ordinate Covalent Bond? How is a Co-ordinate Covalent Bond formed between NH3and

H+ion? Explain?

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009 Q.1) Define: (i) Metallic Bonding (ii) Hydrogen Bonding (iii) Dispersion Forces (London Forces).Q.2) Write four characteristics of a Covalent Compound?Q.3) What is Co-ordinate Covalent Bond? How is a Co-ordinate Covalent Bond formed between NH3and

H+ion? Explain?

CHAPTER SIX: STATES OF MATTER

013 Q.) Define: (i) Brownian Movement (ii) Diffusion (iii) Sublimation.012 Q.) Define: (i) Brownian Movement (ii) Evaporation (iii) Boiling Point (iv) Sublimation (v) Diffusion.011 Q.1) Write three postulates of Kinetic Molecular Theory of Matter?

Q.2) Define Diffusion?

010 Q.) Define: (i) Fusion (ii) Diffusion (iii) Sublimation.009 Q.1) Explain the Kinetic Molecular Theory in different states of matter?

Q.2) State Grahams Law of Diffusion of Gases? Which gas from among CO2, CH4and H2will diffuse thefastest and why? Give the reason.

CHAPTER SEVEN: SOLUTION & SUSPENSION

013 Q.) A Solution has been prepared by dissolving 2 moles of ethyl alcohol in 8 moles of water. Calculate themole fraction of ethyl alcohol and water in the solution.

012 Q.1) Calculate the molarity of a solution containing 4 gm of NaOH in 250 cm of solution?Q.2) Write three difference between Solution and Suspension?

Q.3) Define: (i) Saturated Solution (ii) Un-saturated Solution (iii) Super Saturated Solution (iv) Molarity.

011 Q.1) Write three difference between Solution and Suspension?Q.2) Calculate the molarity of a solution containing 20 gm of NaCl dissolved in 0.5 litre of solution?

010 Q.) Define Molarity? Calculate the molarity of a solution containing 20 gm of NaOH in 500 ml of solution?

009 Q.1) Define: (i) Saturated Solution (ii) Solubility (iii) Crystallization.Q.2) Define Molarity? Calculate the molarity of an aqueous solution containing 5.3 gm of Sodium

Carbonate dissolved in 500 cm3of solution? (Atomic Masses: Na=23, C=12, O=16

CHAPTER EIGHT: ELECTROCHEMISTRY

013 Q.) With the help of a labelled diagram, explain the construction and working of a Lead Storage Battery?012 Q.1) State Faradays first and second law of electrolysis and write two advantages of Electroplating?

Q.2) Calculate the amount of silver deposited at cathode when 10 Ampere of current passed for 50 minutes

through solution of AgNo3(Z for Ag = 0.00118 g/c)

011 Q.1) State and explain Faraday first law of Electrolysis?Q.2) With the help of a labelled diagram, explain the construction and working of a Dry Battery Cell?Q.3) Calculate the amount of silver deposited at cathode when 10 Ampere of current passed for 3600

seconds through solution of AgNo3(Z for Ag = 0.00118 g/c)

010 Q.1) Write three difference between Oxidation and Reduction?Q.2) Define Electroplating. Describe Nickel plating?

Q.3) State Faradays first and second law of electrolysis?009 Q.1) Calculate the amount of silver deposited at cathode when 10 Ampere of current passed for 50 minutes

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through solution of AgNo3(Z for Ag = 0.00118 g/c)

Q.2) With the help of a labelled diagram, explain the construction and working of a Lead Storage Battery?Q.3) State Faradays first and second law of electrolysis and write two advantages of Electroplating?

CHAPTER NINE: ACIDS, BASES AND SALTS013 Q.1) Define Acids, Bases and Salts. Also give one example of each?

Q.2) Calculate the pH and POH of 0.1 M Nitric Acid?

012 Q.1) Write three properties of Acids?Q.2) Give the chemical formula of the following? (i) Caustic Soda (ii) Baking Soda (iii) Washing Soda.

Q.3) Define: (i) pH. (ii) Basicity of Acids (iii) Double Salts.

011 Q.1) Calculate the pH of 0.001M HCl solution?Q.2) What are Double Salts? Write the names and chemical formulas of any two Double Salts?

Q.3) Explain giving balanced equation the Ammonia Solvay process for the manufacturing of SodiumCarbonate?

Q.4) State Lewis Theory of Acids and Bases and explain it with the help of an example.

010 Q.1) State Bronsted-Lowry concept of acids and bases and explain it with the example of HCl (as acid) andH2O as base?

Q.2) Write three important uses of Epsom Salt?Q.3) Give the chemical formula of the following? (i) Caustic Soda (ii) Baking Soda (iii) Washing Soda.

Q.4) Define Salt & Describe the three group of Salt with example.

Q.5) Define Neutralization?

009 Q.1) Write three important uses of Epsom SaltQ.2) Calculate the pH of 0.001M HCl solution?Q.3) Explain giving balanced equation the Ammonia Solvay process for the manufacturing of Sodium

Carbonate?Q.4) State Arrhenius Theory of Acids and Bases and explain it with the examples of HCl and NaOH?

CHAPTER TEN: CHEMICAL ENERGETICS

013 Q.) Define: (i) Thermochemistry (ii) Heat of Neutralization (iii) Enthalpy?012 Q.) What is Endothermic reaction? Give it two examples?011 Q.1) Define Exothermic and Endothermic reaction and give one example each?

Q.2) Define: (i) Enthalpy (ii) Heat of Neutralization?

010 Q.1) Define Exothermic and Endothermic reaction and give one example each with a balanced chemicalreaction?

009 Q.1) What is thermochemical reaction? Write the names and its two kinds and define them?

Q.2) Define the term Enthalpy of a reaction. Also write how the change in enthalpy (H)is calculated?

CHAPTER ELEVEN: HYDROGEN AND WATER

013 Q.1) What is the difference between soft water and hard water?Q.2) How is hard water is softened by Clarks Method? Explain?

012 Q.1) What are isotopes of hydrogen?

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Q.2) Write any three uses of Hydrogen?

011 Q.) What is Hard water? How hard water is softened by using Zeolite (Permutit) Process? Explain010 Q.1) Write chemical reaction of water with the following elements with balanced chemical equations?

(i) Magnesium (ii) Chlorine (iii) Silicon

Q.2) Write any three uses of Hydrogen?

Q.3) Define Soft water, Hard water, Heavy water?009 Q.) What are isotopes? Write the symbols of Deuterium and Tritium with their atomic numbers ans massnumbers?

CHAPTER TWELVE: CARBON, SILICON AND THEIR COMPOUNDS

013 Q.) What is Silica Gel? Write it two uses?012 Q.) Define Water Glass and write any two uses of it?011 Q.) Write three difference between Diamond and Graphite?010 Q.) Compare three physical properties of each of Diamond and Graphite?

009 Q.) What is Allotropy? Write the name of any two crystalline forms of Carbon and two characteristics ofany two of them?

CHAPTER THIRTEEN NITROGEN AND OXYGEN

013 Q.1) Write three difference between oxidation and reduction reactions?Q.2) With the help of a labelled diagram and balanced equation, explain how nitric acid is manufactured by

Ostwalds process?

012 Q.) Describe four types of Normal Oxides?011 Q.1) What is Aqua Regia? How does it dissolve gold?

Q.2) What are oxides? Write the names of its four kinds?

Q.3) How is Ammonia manufactured by Haber-Bosch process? Explain

010 Q.1) Define Ozone. How can ozone be prepared from oxygen? Write its two important uses?Q.2) Write three difference between oxidation and reduction?

009 Q.) How is ammonia gas prepared in the laboratory? Explain the process giving a balanced chemicalequation and a labelled diagram?

CHAPTER FOURTEEN: SULPHUR AND ITS COMPOUNDS

013 Q.) Explain giving balanced chemical equations, the Contact process for the manufacturing of Sulphuric

Acid?012 Q.1) What is Allotropy? Write the names of two crystalline forms of Sulphur and one characteristics of

each of them?

Q.2) Write four uses of Sulphuric Acid?

011 Q.) With the help of a labelled diagram, explain how Sulphur is extracted by Frasch Process?010 Q.1) Define Allotropy? Names the allotropic forms of Sulphur and give two properties of each of them?

Q.2) Describe how Sulphur is extracted from underground deposits by Frasch process? Explain it with a

labelled diagram?

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009 Q.) Write four uses of Sulphuric Acid?

CHAPTER FIFTEEN: HALOGENS

013 Q.) Write three uses of Chlorine?012 Q.1) With the help of a labelled diagram and balanced equation, describe the laboratory method for the

preparation of Chlorine?Q.2) Write four uses of Bleaching powder?

010 Q.) With the help of a labelled diagram and balanced equation, describe the laboratory method for thepreparation of Chlorine?

CHAPTER SIXTEEN: METALS AND THEIR EXTRACTION

013 Q.1) Write the chemical formulae of the following compounds.(i) Bauxite (ii) Haematite (iii) Copper Pyrite

Q.2) Give the chemical formulae of the following ores.(i) Bauxite (ii) Haematite (iii) Iron Pyrite

012 Q.) Give the chemical formulae of the following ores.(i) Copper (ii) Haematite (iii) Iron Pyrite?

010 Q.1) Write composition and one use of each of the following alloys? (i) Brass (ii) Bronze (iii) Nichrome.Q.2) Describe the extraction of Iron from its haematite ore in the blast furnace? Also write the balanced

equations of the reactions which take place in the blast furnace?

CHAPTER SEVENTEEN: HYDROCARBONS

013 Q.1) A hydrocarbon contains six carbon atoms. Write its molecular formula of it as:(i) An Alkane (ii) An Alkene (iii) An Alkyne.

Q.2) Define the following: (i) Homologous Series (ii) Functional group (iii) Aliphatic Hydrocarbons

(iv) Alicyclic Hydrocarbons (v) Aromatic Hydrocarbons.

012 Q.1) Define (i) Alkane (ii) Alkene (iii) Alkyne?Q.2) What are hydrocarbons? Define Saturated and Un-saturated hydrocarbons?

011 Q.) Define: (i) Aromatic Compounds (ii) Homologous Series.010 Q.) Why is Methane called Marsh Gas? Write two methods for the preparation of methane gas giving

balance equations?

009 Q.) Define the following (i) An Alkane (ii) An Alkene (iii) An Alkyne.

CHAPTER EIGHTEEN: CHEMICAL INDUSTRIES

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013 Q.1) What is Soap. How does it remove dirt & dust from clothes?Q.2) How is Caustic Soda manufactured by Castner-Kellners cell?Q.3) Write two causes of food spoilage & two methods of its prevention?

012 Q.)Write three uses of Sodium Bi Carbonate?011 Q.1) What are Plastics? Write the names of its two groups?

Q.2) What is Soap? Write the names of four kinds of soaps?010 Q.) What are Soaps? Describe the two raw materials used in the preparation of Soap? 009 Q.) What are Plastics?

Write the names of its two groups?