Which of the following would have a permanent dipole moment ?

(a) BF3

(b) SiF4

(c) SF4

(d) XeF4

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In the case of alkali metals, the covalent character decreases in the order

(a) MCl > MI > MBr > MF

(b) MF > MCl >  MBr > M

(c)MF > MCl > MI > MBr

(d) MI > MBr > MCl > MF

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

(1) I >  II > III

(2) I = II = III

(3) III > II > I

(4) I > III > II

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which is the incorrect about bond angles ?

(1) NH3 > NF3

(2) NF3 > PF3

(3) NH3 > PH3

(4) NH3 > H2O

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In which case observed dipole moment is greater than theoretical dipole moment?

1.

2.

3.

4.

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Which of the following molecules has the maximum dipole moment?

(a) CO2

(b) CH4

(c) NH3

(d) NF3

 

 

 

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Dipole-induced dipole interactions are present in which of the following pairs?

(a) H2O and alcohol                        (b) Cl2 and CCl4

(c) HCl and He atoms                      (d) SiF4 and He atoms

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Which of the following is a polar molecule?

(a) BF3

(b) SF4

(c) SiF4

(d) XeF4

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Molecule having non-polar as well as polar bonds but the molecule as a whole is polar:

(a) S2F2 

(b) N2O4

(c) Si2H6                                           

(d) I2Cl6

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Which of the following species has polar and non-polar bonds but molecule as a whole is non-polar?

(a) S2O32-                                              (b) (SCN)2

(c) Be2Cl4                                              (d) Si2H6

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