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The f-block elements contains of two series of inner transition elements i.e. lanthanoids (the fourteen elements subsequent lanthanum) and actinoids (the fourteen elements subseque
Indicate the nature of bonding in diamond: (1) Covalent (2) Ionic (3) Coordinate (4) Hydrogen Ans: Covalent
Write down the reactions taking place in different zones in the blast furnace during the extraction of iron.
Which of the following rate equations is correct, if the hydrogenation of the adsorbed intermediate is the slowest step of the reaction? When zinc oxide is used as
Quantitative elemental analysis: The instrument used for AFS consists of atom reservoir that might be a flame or a furnace etc., a basic source emitting the features absorptio
Biomolecules All living bodies are made up of various lifeless substances that are availabe in their cells in a extremely complex but highly organized form. These are known as
Q. Explain Lead chamber process? Lead chamber process, is the older of the two processes. In this process SO 2 , is produced by burning S or roasting pyrites. S + O 2 -
Electronic configuration 1s 2 2s 2 2p 6 3s 2 3p 6 3d 5 4s 1 represents: (1) Ground state (2) Excited state (3) Anionic state (4) All of these Ans: Ground
Comment on the validity of the following statements, giving reasons: (a) Thermodynamically an exothermic reaction is sometimes not spontaneous. (b) The entropy of steam is mo
Phenol (Carbolic acid), C 6 H 5 OH or Hydroxy benzene It was observed by Runge in the middle oil fraction of coal-tar distillation and termed it 'carbolic acid' (carbo = coal, o
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