+2 notes

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    6. Oxidation and Reduction

    BySubarnam

    🎯 Learning outcomes By the end of this chapter, Students should be able to: 6.1 Define oxidation and reduction in terms of the electronic concept. 6.2 Define oxidation number and explain the rules of assigning oxidation numbers. 6.3 Calculate oxidation numbers of elements in compounds and ions. 6.4 Explain redox processes in terms of changes…

  • 4 Classification of Elements

    BySubarnam

    🎯 Learning outcomes After the completion of the chapter, the students should be able to: Explain the modern periodic table and its features. Classify the elements of the periodic table in different blocks and groups. Identify the elements as metals, non-metals, and metalloids. Define the term nuclear charge and effective nuclear charge. Explain and interpret…

  • 2.3 Avogadro’s Hypothesis

    BySubarnam

    2.3 Avogadro’s Law and Some Deductions 🎯 Learning Outcomes After the completion of the chapter, the students should be able to: ✓ State Avogadro’s hypothesis and explain its significance ✓ Derive the relationship: Molecular Mass = 2 × Vapour Density ✓ Show that the gram molecular volume of any gas is 22.4 L at NTP…

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    2.2 Laws of Stoichiometry

    BySubarnam

    2.2 Laws of Stoichiometry 🎯 Learning outcomes By the end of this chapter, Students should be able to: State and explain the laws of stoichiometry, viz: law of conservation of mass, law of constant proportions, law of multiple proportions, law of reciprocal proportions, and the law of gaseous volume. Apply these laws in simple numerical…

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    7.1 Copper

    BySubarnam

    7.1 Heavy Metals — Copper | NEB Grade 12 Chemistry 🎯 Learning Outcomes After completion of the chapter, students should be able to: Describe the occurrence and important ores of copper Explain the main steps in the extraction of copper from copper pyrites Describe properties (reaction with air, acids, aqueous ammonia, and metal ions) of…

  • 7.2 Zinc

    BySubarnam

    7.2 Zinc | NEB Grade 12 Chemistry 🎯 Learning Outcomes By the end of this topic, students should be able to: Describe the occurrence of zinc Describe the extraction of zinc Describe properties (with air, acid, alkali, displacement reaction) State the uses of zinc Explain the chemistry (preparation, properties, and uses) of white vitriol 1…

  • 9.4 Nitrogen

    BySubarnam

    Learning outcome The students should be able to Nitrogen Introduction Atomic number: 7                       Atomic mass: 14 amu E.C.: 1s22s22p3                             Molecular mass: 28 Dalton Position in the periodic table Nitrogen is placed along with phosphorus, Arsenic, Antimony, and Bismuth in group VA (15) of the periodic table. This group is called the nitrogen family….

  • 13.1 Aliphatic Carbonyl Compounds

    BySubarnam

    13.1 Aliphatic Aldehydes and Ketones – Chemistry Notes 🎯 Learning Outcomes After the lesson, learners should be able to: write some examples of aliphatic aldehydes and ketones name the given aldehydes and ketones in IUPAC and common systems describe briefly the nomenclature and isomerism of aliphatic aldehydes and ketones show the preparation of aldehydes and…

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    3. Chemical Kinetics

    BySubarnam

    3. Chemical Kinetics — NEB Chemistry Notes 🎯 Learning Outcomes Candidates should be able to: 3.1 Define chemical kinetics. 3.2 Explain and use the terms: rate of reaction, rate equation, and rate constant. 3.3 Qualitatively explain the factors affecting the rate of reaction. 3.4 Use collision theory to explain the influence of temperature, concentration, and…

  • 18. Chemistry in service to mankind

    BySubarnam

    Learning outcomesCandidates should be able to: Chemistry plays a pivotal role in improving the quality of human life. From the development of life-saving drugs to the manufacture of polymers, dyes, and agricultural chemicals, chemistry contributes significantly to health, industry, and environmental management. This chapter explores how chemical substances are designed and utilized to serve mankind,…

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    6. Transition metals

    BySubarnam

    🎯Learning outcomes After the lesson, learners should be able to: Introduction d-block elements: the elements of groups 3-12 in the periodic table, in which the electrons are progressively filled in the d orbitals of the penultimate shell (second last orbit).According to IUPAC, a transition element (or transition metal) is defined as: An element that has a partially…