12 - Chemical Bonds Questions Answers

which of the following has the maximum value for van der waals constant b - H2O (g) , AlCl3 (g), Cl2 (g)

Asked By: SWATI KAPOOR
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Joshi sir comment

b depends on size so on the basis of size order will be AlCl3>Cl2>H2O

This answer is given by Sarika and is correct answer

 

the type of interaction present between NO3- ion and I2 molecule is ion-dipole interactions or ion-induced dipole interactions.Explains the difference between the two also.

 

Asked By: SWATI KAPOOR
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Joshi sir comment

Iis non polar molecule so it will be ion-induced dipole interactions 

Arrange the following molecules in the increasing order of ionic characters,

LiF, K2O, N2, SO2, ClF

Asked By: SWATI KAPOOR
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Joshi sir comment

N2SO2ClF3, K2O, LiF

Solution by Joshi sir

N2SO2ClF3, K2O, LiF

This order is due to difference of electronegativity of atoms in a molecule

more difference more will be the ionic character

The ratio of positive charge on H- atom in HX to that in HY from the following data is 

Dipole moment of HX = 1.14 D and HY = 0.38 D

Bond length of HX = 127pm and HY = 170pm

Options are - (i) 3:4 ,   (ii) 4:1  ,  (iii) 1:4

Asked By: SWATI KAPOOR
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Joshi sir comment

dipole moment = charge * bond length

now solve

In [Ag(CN)2]- and [Ag(NH3)2]- , the number of π-bond respectively are

Asked By: SWATI KAPOOR
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Joshi sir comment

number of π-bond in [Ag(CN)2]is 4 and in [Ag(NH3)2], it is 0

Is there is any  relation between bond order and bond angle

Asked By: SWATI KAPOOR
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Joshi sir comment

no

the correct increasing order of lattice energy of the above compounds is - AlF3 , Al2O3 and AlN

Asked By: SWATI KAPOOR
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Joshi sir comment

AlF3              5924 kJ/mol

Al2O3           15916 kJ/mol  

AlN               9506.8 kJ/mol

Which of the following hydrides has the highest M-H bond polarity

(a) AsH3           (b) BiH3            (c) SbH3          (d) None of these

Asked By: SWATI KAPOOR
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Joshi sir comment

electronegativity of H = 2

and for all other elements in this question electronegativity is less than 2 

least for Bi 

so diff. for Bi is max so max polar

which of the following has highest energy?

1)S-S

2)O-O

3)Se-Se

4)Te-Te

Asked By: SHIVANI MALIK
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Joshi sir comment

O-O         498.36 kJ/mole

S-S         425.30 kJ/mole

Se-Se      332.6 kJ/mole

Te-Te      259.8 kJ/mole

which of the following has zero dipole moment?  and how?

1)1-butane

2)2-methyl, 1-propyl

3)cis 2-butane

4)trans 2-butane

Asked By: SHIVANI MALIK
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Joshi sir comment

i think it should be trans 2 butene 

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