1. what is the strongest type of intermolecular force present in NH2CH3? A)dispe

ID: 834933 • Letter: 1

Question

1. what is the strongest type of intermolecular force present in NH2CH3?

A)dispersion B)dipole-dipole C)hydrogen bonding D)ion-dipole E) none

2. what is the strongest type of intermolecular force present in H2?

A)ion-dipole B)dipole-dipole C)dispersion D) hydrogen bonding E) none

3. what type of intermolecular force causes the dissolution of NaCl in water?

A) hydrogen bonding B)dipole-dipole force C)ion-dipole force D)dispersion forces E) none

4. what is the strongest type of intermolecular force present in CHF3?

A)dispersion B)dipole-dipole C)hydrogen bonding D)ion-dipole E) none

5. which of the following has the strongest intermolecular forces?

A) HF B)O2 C)CO2 D)impossible to tell

6)choose any of the following compunds that are polar molecules (could be one than one answer)

a) BrCl3 b)CS2 C) SiF4 D) SO3

7) how many of the following molecules have sp^2 hybridization on the central atom?

HCN SO2 OCl2 XeCl2

a)4 b)3 c)2 d)1 e)0

1) C . Hydrogen bonding between H attached to NH2 and adjacent molecule N

2) C . H2 is non polar , hence weak dispersion forces present.

3) C . NaCl dissolves by forming Na+ and Cl- ions. Thus there is ion - dipole ( water) interactions.

4) B , CH3F has dipole and forms diople -dipole interactions

5) A , IN HF hydrogen bonding present.

6) A . Only BrCl3 has diople moment , remaining molecule are symmetrical and has net dipole moment 0

7) D SO2 has S in sp2 while all others also dont have sp2

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