XI Unit X: s -block Elements (Alkali and Alkaline Earth Metals)

Group 1 and Group 2 Elements

General introduction, electronic configuration, occurrence, anomalous properties of the first element of each group, diagonal relationship, trends in the variation of properties (such as ionization enthalpy, atomic and ionic radii), trends in chemical reactivity with oxygen, water, hydrogen and halogens, uses.

Preparation and Properties of Some Important Compounds:

Sodium Carbonate, Sodium Chloride, Sodium Hydroxide and Sodium Hydrogencarbonate, Biological importance of Sodium and Potassium. Calcium Oxide and Calcium Carbonate and their industrial uses, biological importance of Magnesium and Calcium.

 

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Study Material:

NCERT   NIOS

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Previous year question:

• CBSE
• BSEB
• Maharashtra Higher Secondary Education
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• Karnataka Department of Pre-University Education
• JEE
• NEET
•  

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ANIMATIONS 

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Online MCQ Test 

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XI Unit VIII: Redox Reaction

Concept of oxidation and reduction, redox reactions, oxidation number, balancing redox reactions, in terms of loss and gain of electrons and change in oxidation number, applications of redox reactions.

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Study Material:

NCERT   NIOS

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Previous year question:

• CBSE
• BSEB
• Maharashtra Higher Secondary Education
• Uttar Pradesh Madhyamik Shiksha Parishad
• WBCHSE
• Directorate of Government Examinations Tamil Nadu
• Board of Secondary Education, Madhya Pradesh
• Karnataka Department of Pre-University Education
• JEE
• NEET
•  

Model Question Class xi redox reactions Question

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ANIMATIONS 

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Online MCQ Test 

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XI Unit VII: Equilibrium

Equilibrium in physical and chemical processes, dynamic nature of equilibrium, law of mass action, equilibrium constant, factors affecting equilibrium - Le Chatelier's principle, ionic equilibrium-ionization of acids and bases, strong and weak electrolytes, degree of ionization, ionization of poly basic acids, acid strength, concept of pH, Henderson Equation, hydrolysis of salts (elementary idea), buffer solution, solubility product, common ion effect (with illustrative examples).

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Study Material:

NCERT   NIOS

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Previous year question:

• CBSE
• BSEB
• Maharashtra Higher Secondary Education
• Uttar Pradesh Madhyamik Shiksha Parishad
• WBCHSE
• Directorate of Government Examinations Tamil Nadu
• Board of Secondary Education, Madhya Pradesh
• Karnataka Department of Pre-University Education
• JEE
• NEET
•  

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ANIMATIONS 

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Online MCQ Test 

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XI Unit VI: Chemical Thermodynamics

Concepts of System and types of systems, surroundings, work, heat, energy, extensive and intensive properties, state functions.

First law of thermodynamics -internal energy and enthalpy, heat capacity and specific heat,  measurement of ΔU and ΔH, Hess's law of constant heat summation, enthalpy of bond dissociation, combustion, formation, atomization, sublimation, phase transition, ionization, solution and dilution. Second law of Thermodynamics (brief introduction) 

Introduction of entropy as a state function, Gibb's energy change for spontaneous and non-spontaneous processes, criteria for equilibrium.

Third law of thermodynamics (brief introduction).

 

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Study Material:

NCERT   NIOS

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Previous year question:

• CBSE
• BSEB
• Maharashtra Higher Secondary Education
• Uttar Pradesh Madhyamik Shiksha Parishad
• WBCHSE
• Directorate of Government Examinations Tamil Nadu
• Board of Secondary Education, Madhya Pradesh
• Karnataka Department of Pre-University Education
• JEE
• NEET
•  

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ANIMATIONS 

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Online MCQ Test 

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