Recent questions in Chemical Bonding and Molecular Structure

Match the following column-I and column-II

asked Mar 10, 2014 by sreemathi.v

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According to molecular orbital theory ,the magnetic characteristics of $F_2^{2+}$ and $Br_2^{2+}$ respectively are

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Which one of the following is the incorrect matching?

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Which of the following is the correct order for increasing the Lewis acid character?

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Which one of the following molecule is more stable?

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According to molecular orbital theory,which of the following statement is not correct?

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Which one of the following order is correct for the increasing thermal stabilities of $K_2CO_3,MgCO_3,CaCO_3$ and $BeCO_3$ ?

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Polarisation of electrons in acrolein may be written as :

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Which of the following compound will have the highest dipole moment?

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If we assume linear structure of water (instead of bent),then which one of the following properties cannot be explained?

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Molecular geometries of $SF_4,CF_4$ and $XeF_4$ are :

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The common features among the species $CN^-,CO$ and $NO^+$ are :

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The dipole moment of a hydrogen halide $H-X$ is 1.80 and the bond length is 1.5 $A^{\large\circ}$ .The percentage of ionic character of H-X bond will be : $(e=4.8\times 10^{-10}$ e.s.u)

asked Mar 10, 2014 by sreemathi.v

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Find the bond angle of $H_2S$ .If the S-H bond moment is 0.72D and $\mu=0.95D$

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Which statement best describes the structure of $PF_3Cl_2$

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Magnetic moment of $K_3Fe(C_2O_4)_3.3H_2O$ is

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Which of the following is the correct order of O-O bond length in $O_2,H_2O_2$ and $O_3$ is :

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Which of the following is the correct order for the strength of hydrogen bonds

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What is the percentage of ionic character of HCl.If $\mu=1.02D$ , bond length is $1.275\overset{\circ}{A}$ ( $e=4.8\times 10^{-10}$ e.s.u)?

asked Mar 10, 2014 by sreemathi.v

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C-C bond in $C_2H_6$ undergoes heterolytic fission,the hybridisation of carbon is/are

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Which of the following is the correct order of bond angle ?

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The molecule that will have dipolemoment is

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Which one of the following would require the largest amount of energy to cause dissociation

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In which one of the following pairs,molecules/ions have similar shape?

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In which one of the following pairs,the species have similar geometry

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Which of the following is the correct order of dipole moment value?

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Among the following molecules,the dipole moment is the highest for

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Which one of the following compound contains a cation having non-inert gas outermost configuration?

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How does the strength of the charge-charge interaction between two ions depend on the separation in the absence of any other ions?

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Among the following the correct statement is

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The bond dissociation energy of $B-F$ in $BF_3$ in 646KJ $mol^{-1}$ whereas that of C-F in $CF_4$ is 515KJ $mol^{-1}$ . The correct reason for higher B-F bond dissociation energy as compared to that of C-F is

asked Mar 10, 2014 by sreemathi.v

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The structure of $XeO_2F_2$ based on VSEPR theory is best described as

asked Mar 7, 2014 by sreemathi.v

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The hybridisation of $'Xe'$ atom in $XeF_4$ molecule is

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The number of $\sigma$ and $\pi$ bonds in $ClO_3$ respectively

asked Mar 7, 2014 by sreemathi.v

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Among the following species,identify the isostructural pairs: $NF_3,NO_3^-,BF_3,H_3O^+,HN_3$

asked Mar 7, 2014 by sreemathi.v

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The hybridisation of N atom in $NO_2^-$ is

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The shape of methyl cation $(CH_3)^+$ is

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According to VSEPR theory,which of the following is the incorrect statement?

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Which of the following statement is incorrect on resonance ?

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The change in hybridisation of the Al atom in the reaction of $AlCl_3+Cl^-\rightarrow AlCl_4^-$

asked Mar 7, 2014 by sreemathi.v

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Which of the following is the correct order of increasing the bond length?

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Hybridisation and geometry of $XeO_4$ is

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Which of the following molecule has the lowest dipolemoment?

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The nodal plane in the $\pi$ -bond of ethene is located in

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In an anti-bonding molecular orbital,electron density is minimum

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According to MO theory,which of the following statement is correct?

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hypervalent compound is

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In a non polar $AX_2$ , the bond moment of $AX$ is 0.56D then the bond angle of $AX_2$ is

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Among the following isostructural compounds,identify the compound which has the highest lattice energy

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Which of the following is the correct order of decreasing ionic size is

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