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Science Number of valence electrons in carbon is 2 3 4 5 Atoms having 1, 2 or 3 electrons in its valence shell will readily form_____________ cation anion Calcium electron Bond formed between a metal and non-metal atom is usually____________ ionic bond covalent bond co-ordinate bond metallic bond Covalent bond is formed by_________ transfer of electrons sharing of electrons sharing a pair of electrons transfer of electrons Elements with stable electronic configurations have eight electrons in their valence shell. They are__________ Halogens Metals Noble gases non metals Which of the following atom can exist independently? Magnesium Chlorine Hydrogen Neon The bond which is formed by mutual sharing of electrons is called ________bond. ionic covalent co-ordinate covalent bond all the above Which of the following compound(s) possesses high melting point? NaCI MgCI2 CCl4 Both a & b ____________theory explains the formation of molecules The valency of noble gases is_____ In covalent bond formation, the sharing of________ electrons takes place in their outermost shell. __________ & ___________atoms have similar electro negativities Ionic compounds are________ in nature. Octet rule donor atom Ionic bond acceptor bond Atomic bond Electrovalent bond Atom which accepts electron pair Noble gases Atom which provides electron pair covalent bond In the formation of compounds, the inner shell electrons of an atom involve in bonding. Ionic compounds have low melting and boiling point Greater the charge of the cation greater will be the ionic character Water, acetone, benzene, toluene, turpentine Platinum, palladium NaBH4, CrO3, Explain Octet rule with an example. Write a note on different types on bonds? Why are Noble gases inert in nature? What is chemical bond? What are reducing agents? Give examples. List down the differences between Ionic and Covalent compounds. Discuss in brief about the properties of Coordinate covalent compounds.
Chemical bonding Model Question Paper
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