XAM IDEA CHEMISTRY CLASS 12 PDF

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Xam Idea of Chemistry Class 12 PDF Free Download. XAM IDEA is one of the best book i have ever read. The explanation in this book is very. For chemistry: mapbookstosraso.cf For physics You can download it from here [PDF] Xam Idea Chemistry Class 12 PDF Free Download. XAM IDEA CHEMISTRY XII book. Read reviews from world's largest community for readers. XAM IDEA CHEMISTRY XII.


Xam Idea Chemistry Class 12 Pdf

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Kelly Rutherford Matthew Settle Photos - Kelly Rutherford and Matthew Settle shoot an affectionate scene between their two characters on the set of "Gossip Girl. Xam idea is a comprehensive exam preparation system for secondary and senior Price: ā‚¹ Add to Cart. Xam idea 20+ Practice Paper Chemistry. Class XII. View chem class 12 xam mapbookstosraso.cf from CHEMISTRY 1 at Silver Bells Institute For Higher Education. CHEMISTRY Examination Papers CONTENT n.

The molecular mass of the compound is On vigorous oxidation it gives ethanoic and propanoic acids. Deduce the possible structure of the organic compound. What type of substances exhibit antiferromagnetism? Express the relation between conductivity and molar conductivity of a solution.

Which has a higher enthalpy of adsorption, physisorption or chemisorption? The resistance of a conductivity cell containing 0. What is the cell constant if the conductivity of 0. How would you account for the following?

OR Explain the following properties giving suitable examples: i Ferromagnetism ii Paramagnetism iii Ferrimagnetism Explain the basic principles of following metallurgical operations: i Zone refining ii Vapour phase refining iii Electrolytic refining Explain what is observed when: i an electrolyte, KCl, is added to a hydrated ferric oxide sol. This is due to the unequal bombardment of colloidal particles by the molecules of dispersion medium.

Benzene diazonium chloride 8.

In haloarenes Cā€”X bond acquires a partial double bond character due to resonance. As a result the bond cleavage in haloarenes is difficult than haloalkanes and therefore, they are less reactive towards nucleophilic substitution reaction.

It states that at constant temperature the mass of a gas m dissolved in a given volume of the liquid is directly proportional to the pressure of the gas P present in equilibrium with the liquid.

For a first order reaction [R ]0 2. Rate constant is the rate of the reaction when the concentration of each reactant is taken as unity. Due to this, globules unfold and helix get uncoiled and proteins loses its biological activity. The following reactions of glucose cannot be explained by its open chain structure. These glucosides do not react with hydrogen cyanide or with hydroxylamine.

Thus, ammonia is stronger base than phosphine. Biodegradable detergents: Detergents having straight hydrocarbon chains are easily degraded by micro-organism and hence called biodegradable detergents, e. Semiconductor: These are the solids with conductivities in the intermediate range from 10 -6 to 10 4 ohm -1 m Semiconductors are of two types i n-type of semiconductors ii p-type of semiconductors n-type semiconductor: When a silicon or germanium crystal is doped with group 15 element like P or As, the dopant atom forms four covalent bonds like a Si or Ge atom but the fifth electron, not used in bonding, becomes delocalised and contribute its share towards electrical conduction.

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Thus silicon or germanium doped with P or As is called n-type semiconductor, n indicative of negative, since it is the electron that conducts electricity. It states that at constant temperature the mass of a gas m dissolved in a given volume of the liquid is directly proportional to the pressure of the gas P present in equilibrium with the liquid.

For a first order reaction [R ]0 2. Rate constant is the rate of the reaction when the concentration of each reactant is taken as unity.

When a protein in its native form is subjected to physical change like change in temperature or chemical change like change in pH, the hydrogen bonds are disturbed. Due to this, globules unfold and helix get uncoiled and proteins loses its biological activity. The following reactions of glucose cannot be explained by its open chain structure.

These glucosides do not react with hydrogen cyanide or with hydroxylamine. Thus, ammonia is stronger base than phosphine. Biodegradable detergents: Detergents having straight hydrocarbon chains are easily degraded by micro-organism and hence called biodegradable detergents, e.

Detergents having branched hydrocarbon chains are not easily degraded by micro-organisms and hence are called non-biodegradable detergents, e. These are the solids with conductivities in the intermediate range from 10 -6 to 10 4 ohm -1 m Semiconductors are of two types i n-type of semiconductors ii p-type of semiconductors n-type semiconductor: When a silicon or germanium crystal is doped with group 15 element like P or As, the dopant atom forms four covalent bonds like a Si or Ge atom but the fifth electron, not used in bonding, becomes delocalised and contribute its share towards electrical conduction.

Thus silicon or germanium doped with P or As is called n-type semiconductor, n indicative of negative, since it is the electron that conducts electricity. When silicon or germanium is doped with group 13 element like B or Al, the dopant has only with three, valence electrons. An electron vacancy or a hole is created at the place of the missing fourth electron.

Here, this hole moves through the crystal like a positive charge giving rise to electrical conductivity. Thus Si or Ge doped with B or Al is called p type of semiconductor, P stands for positive hole since it is the positive hole that is responsible for conduction.

Silicon atom Mobile electron Positive hole no electron As Perfect crystal n-type Lyophilic sols: Lyophilic sols are those sols in which the particles of dispersed phase have great affinity for the dispersion medium, e.

Lyophobic sols: In this type of sols the particles of dispersed phase have little or no affinity for the dispersion medium, e. Lyophobic sols easily coagulate on the addition of small amount of electrolyte because these are not stable.

The stability of Lyophobic sols is only due to the presence of charge on the colloidal particles, on the other hand stability of lyophilic sol. Hence pure metal separates out. Square planar. Magnetic behavio View Full Document.

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