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The percentage ionic characterin Cs-Cl b...

The percentage ionic characterin `Cs-Cl` bond present in CsCl molecule will, be, if the electronegativities for Cs and Cl are `0.8 and 3.0`, respectively

A

`62.9 %`

B

`60%`

C

`75%`

D

`52.14%`

Text Solution

Verified by Experts

The correct Answer is:
D
Percentage ionic charcter
`=[16(X_(Cl)-X_(Cs))+3.5 (X_(Cl)-X_(Cs))^(2)]`
`=[16(3.0-0.8)+3.5(3.0-0.8)^(2)]`
`=[16xx2.2+3.5xx(2.2)^(2)]=[35.2+16.94]`
`=52.14%`
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Knowledge Check

  • The percentage ionic character in H-Br bond in HBr molecule is "________________" , given the electronegativity of H and Br are 2.1 and 2.8 respectively .

    A
    `12.9`
    B
    `16.9`
    C
    `23.9`
    D
    `9`

  • Which of the following statements is (are) incorrect? (i) Percentage ionic character in CsCl bond is ~55% . (Electronegativity values of Cs and Cl are 0.7 and 3.0 respectively) (ii) From H_(2)O to H_(3)O^(+) , the geometry around O atom changes drastically . (iii) The most stable oxidation state for element with atomic number 113 is expected to be +2 . (iv) The 2^("nd") ionization energy of Ca is greater than 1^("st") ionization energy of it but lower then 2^("nd") ionization energyof K.

    A
    Only i
    B
    i,ii, iii
    C
    ii, iii
    D
    iii, iv

  • The C-C single bond length is 1.54 A^(@) and that of Cl-Cl is 1.98 A^(@) . If the electronegativity of Cl and C are 3.0 and 2.5 respectively , the C-Cl bond -length will be equal to

    A
    `3.12 A^(@)`
    B
    `1.67 A^(@)`
    C
    `1.71 A^(@)`
    D
    `2.12 A^(@)`
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