PREPARATION AND PROPERTIES OF COMPOUNDS   Solution to Subjective Problems    LEVEL – I Water reacts with Na2O2 to produce NaOH which increases the decomposition of H2O2. Hydrolysis of AlCl3 takes place forming Al2O3 2AlCl3 + 3H2O ⎯⎯→ Al2O3 +…

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I-A II-A III-B IV-B V-B VI-B VII-B VII I-B II-B III-A IV-A V-A VI-A VII-A INERT GASES                     ● Lanthanide Series ●● Actinide…

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CHEMISTRY   Which is isoelectronic with carbon atom? (A) Na+ (B) Al3+ (C) O2– (D) N+   At ordinary temperature and pressure, among halogens, chlorine is a gas, bromine is a liquid and iodine is a solid. This is because…

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GENERAL ORGANIC CHEMISTRY Subjective Problems  LEVEL – I   Amides are less basic than amines because lone pair on nitrogen are involved in resonance with C = O, π electrons resulting in less availability of electrons on nitrogen. In Guanidine…

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CONCEPT OF ACIDS & BASES   Solution to Subjective Problems    LEVEL – I H3O+ > H2O > OH– The highly branched tertiary butyl group involve appreciable back – strain (B-strain) when the boron atom changes to pyramidal environment on…

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CHEMICAL BONDING   Subjective Problems    LEVEL – I Vacant orbital on born on BF3is involved in pπ – pπ bonding with completely filled orbital on fluorine. But this pπ – pπ bonding is not effective in BCl3 due to…

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CHEMICAL BONDING   Subjective Problems    LEVEL – I Vacant orbital on born on BF3is involved in pπ – pπ bonding with completely filled orbital on fluorine. But this pπ – pπ bonding is not effective in BCl3 due to…

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1. IIT-JEE Syllabus  Systematic analysis of various cations and anions excluding interfering radicals.   2. Introduction  The purpose of chemical analysis is to establish the composition of natural or artificially manufactured substances. For the purpose of systematic qualitative analysis cations are…

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IIT–JEE Syllabus  Alumina, aluminium chloride and alums; oxides and chlorides of tin and lead; ferrous sulphate, Mohr’s salt, ferric oxide and ferric chloride, copper sulphate, oxide and sulphite of zinc, silver nitrate and silver bromide. Hydrogen peroxide; carbon oxides and…

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