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The bond angle in H(2)S...

The bond angle in `H_(2)S `

A

`gt NH_(3)`

B

Same as in `BeCl_(2)`

C

`gt H_(2)Se lt H_(2)O`

D

Same as in ` CH_(4)`

Text Solution

Verified by Experts

The correct Answer is:
c
In a group bond angle decreases as the
electronegativeity of the central atom atom decreases
` H_(2)O gt H_(2) S gt H_(2) Se`.
Thus the bond angle in ` H_(2)S ` less than that of `H_(2)`
but greater than that of `H_(2) Se ` . Thus otion (c) i.e.
`H_(2) S gt H_(2)Se gt H_(2) O` is correct .
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Explore conceptually related problems

Chemical bonding between two atoms is necessarily associated with an electrical moment arising out of the difference in electroegativity of two atoms. This means that every bond carries with it an electrical moment called the ''bond moment''. The dipole moment of a molecule is really the vectorial sum of the individual bond moment present in it. To compute the dipole moment it is necessary to find out the values of various bond moment. In the following table, dipole moment of different bonds are as given. {:(,rarr,rarr,rarr),("Bond",H-C,C-Cl,C=0),("Bond moments",0.4 D,1.5 D,2.5 D):} The group moments of few groups as given {:("Group",NO_(2),OH,CN,CH_(3)),("Direction of dipole","Towards N","Towards O","Towards N","Away from "CH_(3)),("Dipole moment",4D,1.6D,3.8D,0.4D):} The bond angle in H_(2)S is 97^(@) and its dipole moment is 1.5 D. The S-H bond distance is 0.15 nm. Therefore, approximate percentrage ionic cjaracter pf S-H bond is (neglect the effect of dipole moment of lone pair on sulphur atom in H_(2)S ). (Given : [cos 97^(@)=-0.121 and sqrt(0.88)=0.94] )

The bond angle in H_2S is

Bond angle in H_(2)O is

The bond angle in H_2O is nearly 105^@ whereas bond angle in H_2 S is nearly 92^@ . This is because.

Why H-S-H bond angle in H_(2)S is smaller than H-O-H bond angle in H_(2)O ?

Assertion : H-S-H bond angle in H_(2)S is closer to 90^(@) but H-O-H bond angle in H_(2)O is 104.5^(@) Reason: lp-lp repulsion is stronger in H_(2)S than in H_(2)O

MARVEL PUBLICATION-NATURE OF CHEMICAL BOND -TEST YOUR GRASP
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  2. Which of the following does not follow the octet rule ? .

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  3. The stability of ionic crystal depends principally on

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  4. Which of the following statements about LiC and NaCl is wrong?

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  5. Which of the following bonds is the strongest ? .

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  6. Which of the following is the correct electron-dot structure of N2O mo...

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  7. Which of the following molecule has highest dipole moment?

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  8. Which of the following molecule has highest dipole moment?

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  9. The correct order of decreasing polarity is

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  10. In an ionic compound A^(+) X^(-) the degree of covalent bonding is gre...

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  11. According to Fazan rule, the covalent bond is favoured by :

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  12. Out of CHCl(3), CH(4) and SF(4) the molecules do not having regular ge...

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  13. Which out of the following structures is expected to have three bond p...

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  15. N atom in NH(4)^(+) involves the hybridizations

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  16. A hybrid orbital formed from s and p-orbital can contribute to

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  17. The state of hybridization of the central atom is not the same as in t...

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  18. The d-orbitals involved in dsp^2 hybridisation is

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  19. Which of the following molecules in planar ?

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  20. The number of sp^2-s sigma bonds in benzene are

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  21. The bond angle in H2O is nearly 105^@ whereas bond angle in H2 S is ne...

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