2nd year Chemistry Guess Paper 2018
Important Question paper Chemistry 2nd year
Position of hydrogens, oxides, hydroxide and halides
Periods in periodic table.merits and demerits of Mendeleev,s periodic tables..
metallic oxides are basics and non metallics are acidic why?
what is lanthnide contraction.2nd electron affinity is exothermic why?.hydration energy it’s factors?.
Amphotaric oxides. And question number 7 – 13 from exercise.
Discuss solubility of sulfates and carbonates. Reaction of alkali metals with oxygen and water. Lime mortar. How plaster of Paris is prepared from gypsum. Slacking of lime. Alkali metals are strong reducing agent why? How K02 can be use by mountainer? Solution of Na2Co3 is basic why?
And question number 7
(b) from exercises.
Peculiar behavior of lithium.
Down cell and diaphragm cell.
What is iner pairs effect. How borax is prepared by to methods.
Uses of borax and Boric acids.
effects of heat on borax ..
Uses of sodium silicates.
CO2 is gas while SiO2 is solids why?
Peculiar behavior of carbons. Chemical garden.
Why silicones are more proffered over petroleum.
What is basic lead and lead chromates. borax bead tests. ortho boric acid is mono basic acid why.
What is laughing gas it is prepared.
Uses of nitric acids.
Reaction of nitric acid with bases carbon,phosphorus,sulphur,Cu , Sn. Zn
Reaction of P2O3 and P2O5 with cold & hot water.P2O5 as dehydrating agents.similarities and dissimilarities of sulphur and oxygen. Reaction of sulphuric acid( All)Reaction of NO2 with water and with phosphorus .ring test. And allotrope of phosphoru.
Halogens are oxidizing agents why.
How I205 can be used for quantitative analysis of C0. What is available chlorine.
Uses of fluorines,chlorine,bromine and iodine separate .
How xenon tetra oxide is prepared. Uses of noble gases.
Question number 4 and 6 b 8 b from exercise.
Long question :
Properties of transition element.
Manufacture of steels.
Type of steel.
Electron chemicals theory.
Typical and non typical transition elements.
Melting point and its trend. Binding energy and its trend paramagnetism.
why transition elements compounds show colors. What are ligands. What is co ordination sphere. What are chelates. Classification of steel.
Galvanizing of zinc. And cathode coating. Chromyl chloride test. How KMnO4 is prepared by two methods.
How chromates are converted into dichromates. Write reactions of KMnO4 with oxalic acid ferrous sulphate and KI
Cracking, reforming and geometrical isomerism.
What is peculiar nature of carbon.
How anthracite is prepared?
What is natural gas.
What is functional group? Give examples.
Metamerism.tautomerism and functional group isomerism.
Question 15 from exercise
Acidic nature, halogenation of alkane.kolbe,s electrolytic method,
Friedel Crafts reactions.
Stability of benzene.
Kekule structure and points favoring it.
Differentiate between mono and polycyclic aromatic compound.
Prepare benzene by 2 methods specially from alkanes.
Prepare glyoxal,oxalic acid,maliec acid benzoic acid and meta nitrochloro benzene from benzenes.
SN1 ,SN2 and E1 ,E2.
Reactions of Grignerd reagents.
Reactivity of alkyd halides.
Prepare alkyl halite by two methods.
Questions 8,12 from exercise.
Preparation of methanols.
Reactions of phenols.
Acidic nature of phenol.
Oxidation and hydration of alcohol.
Question 10,11,12 from exercises
Preparation of formaldehyde and acetaldehyde.
Aldol condensation and cannizaro reactions.
Prepare lactic acid from ethanols.
Addition of sodium sulphite in carbonyl compounds.
Reduction of carbonyl compounds.
Uses of acetaldehyde.
Question num 16,17 from exercises.
Reaction of carboxylic acid with bases.
Differentiate between aromatic carboxylic acid and fatty acids.
Amino acids are amphoterics.
Differentiate between polypeptide and proteins.
What is zwitter ions.
Prepare acetic acid from ethynes.
Ester formation, acid halide and amide formations.
Reactions of acetic acids.
Difference between addition and condensation polymerizations
Glycogan and starchs
Denaturation and importance of protein
Factors effecting enzymes
Diffrentiate between DNA and RNA
Macro and micro nutrient.
Phosphorus ki importance and pralling .
Raw materials for cements
Components of environment.
Exercise:Q9 to Q16
Best of Luck for 2nd year chemistry students