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generally ionic bonds are stronger than covalent bonds this is because in ionic bonds electrostatic forces of attractin are involved the positive
if hydrogen atom is in an energy level represented by n4how many spectral lines are possible in its emission spectrumans there is a formula for this
energy difference is maximum between which of the consecutive energy levels in an atomans according to the line spectrum of hydrogen maximum energy
it is stated that bohrs theory is applicable to hydrogen like ionswhyansit is not stated in bohrs theory but it is a drawback of his theorythe reason
in ion estimation why we have to change the oxidation state of the fe3 ionans because if iron is in 3 oxidation state it will be morestable then we
al is used as reducing agent for the extraction of metals such as chromiummonganesexplain whysolution al3 3 e- lt----gt algood reducing agents like
with suitable examples explain how a polar molecule could induce polarity to a nearby nonpolar moleculeans throughinduction the positive part of the
it is a part of chemistry which deals with the organic compounds formed by carbon hydrogen
1first find the maximum number of carbons chaingive it to as a parent name2next find functional groups and give numberingfunctional group must get
why is zinc is not extracted from zinc oxide through reduction with cosolution reducing agent should have more negative deltag value in case of zinc
molecule in itself is electrically stable so it cant act as ligand so that it can acts as the negative and pasitive
the mineral pyrite or iron pyrite is an iron sulfide with the formula fes2 this minerals metallic luster and pale brass-yellow hue have earned it the
the isomerim exhibited by the compounds having the same molucular formula but they having different functional groups is called functional group
in crystallography water of crystallization or water of hydration or crystallization water is water that occurs in crystals water of crystallization
delocalisation of electrons in conjugated system is called resonance for example there is delocalisation of electrons in benzene hence we write
how many octahedral and tetrahedral voids are present in hcpans octa -no of atoms prsnt nd tetra -twice of it
to increase the pressure so that boiling point of water increases and heat provided goes only for cooking food not for boiling
it is hydrated potassium aluminium sulfate kalso42middot12h2o
in chemistry a steady state is a state in which all state variables are constant in spite of ongoing processes that strive to change them for an
how to find which compound is acid or basic i need only a understanding or a basic tip or suggestin how to find whether a compound is an acid or
which is more acidic among o-methoxy benzoic acid and m-methoxy benzoic acidans o-methoxy benzoic acid is more acidic than m-metoxy benzoic acid
why are the substances like platinum and palladium often used for carrying out electrolysis of aqueous solutions ans substance like platinum and
gold has a molar mass of 197gmol how many atoms are in the sampleplease give me procedure also ansmolecular wieght of gold is 197 g1moleg of molecule
the given amines are ch3nh2 ch32nhnh3nh2br amp the amines list is from strongest base to weakest ch32nhamp
calculate the free energy change of following reaction at298 kelvin h2i22hi if the enthalpy change is 518816kj and the entropy change is 16615j is