Coordinate covalent bond is absent in:

Important Questions on Chemical Bonding

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Science>Chemistry>Chemical Bonding>Coordinate Bond

The form of iron obtained from blast furnace is :

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Which of the following molecule does not obey octet rule?

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The numbers of lone pair and bond pairs in hydrazine are, respectively:

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Which of the following pair contains $2$ lone pair of electrons on the central atom?

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The number of co-ordination bonded water molecules associated with ${\mathrm{CuSO}}_4.5{\mathrm{H}}_2\mathrm{O}$ is _______

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In ozone molecule, the formal charge on the central oxygen atom is

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What is a polar molecule? Give an example.

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Which among the following is an electron deficient compound ?

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The total number of dative bonds present in all the following $\mathrm{CO}, {\mathrm{NH}}_4\mathrm{Cl}, {\mathrm{Al}}_2{\mathrm{Cl}}_6, \mathrm{Al}{\left({\mathrm{H}}_2\mathrm{O}\right)}_6, {\mathrm{HNO}}_3$ and ${\mathrm{CO}}_2$ is

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The sum of the number of dative bonds present in all the given species are; ${\mathrm{Al}}_2{\mathrm{Cl}}_6, \mathrm{Al}{\left({\mathrm{H}}_2\mathrm{O}\right)}_6, \mathrm{CO}, {\mathrm{NH}}_4^{+}$

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Valence electrons in the element $\mathrm{A}$ are $3$ and that in element $\mathrm{B}$ are $6$. Most probable compound formed from $\mathrm{A}$ and $\mathrm{B}$ is

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What is the nature of the bond between $\mathrm{B}$ and $\mathrm{O}$ in ${\left({\mathrm{C}}_2{\mathrm{H}}_5\right)}_2{\mathrm{OBH}}_3 ?$

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The formal charge on central oxygen atom in ozone is

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Science>Chemistry>Chemical Bonding>Coordinate Bond

Total number of lone pair of electrons in ${{\mathrm{I}}_3}^{-}$ ion is:

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Which of the following represents the most stable Lewis dot formula for ${\mathrm{CO}}_3^{2-}$?

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Which of the following species is a radical?

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The ion that is isoelectronic with $\mathrm{CO}$ is

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Draw the electron dot structure of Ammonium ion. $[\mathrm{N}=7, \mathrm{H}=1]$

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Nitrogen shows maximum covalency of $4$ where as other heavier elements of the group show higher covalency because.

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Which compound has both covalent as well as co-ordinate bonds?