
Polarity, Intermolecular forces, Bio Macromolecules, Catalyst, Collision, Chemical Reaction, Energy, Active Ingredients,
Quiz by leiza palis
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- Q1
Which of the following paired atoms is non-polar?
H-F
Br-F
H-Cl
H-P
30s - Q2
Which of the following bonds has the highest polarity?
N-H
O-H
C-O
C-H
30s - Q3
Which of the following bonds has the lowest polarity?
O-H
C-H
N-H
C-O
30s - Q4
Which of the following is the correct decreasing electronegativity values?
H, Si, P, S
F, O, N, C
Cl, S, Si, P
As, Se, Br, F
30s - Q5
Which molecule has an ionic bond?
H-F
Na-F
F-F
Cl-F
30s - Q6
Which statement is true about the non-polar molecules?
They have lone pair on the central atom
They have charges
They are symmetric
They are asymmetric
30s - Q7
If a molecule has this symbol &-, it means_______.
Negative
Positive
Neutral
cancel out
30s - Q8
If a molecule has this symbol &+, it means_______.
positive
charge
negative
neutral
30s - Q9
If a molecule has value of 1.6 electronegativity difference, this molecule is best described as________.
Polar
Non-Polar
Ionic
Covalent
30s - Q10
Which of the following IMFAs is considered as the weakest?
Ion-dipole
H-bonding
London forces
Dipole-dipole
30s - Q11
The boiling point of water is greater than dihydrogen sulfide because of ______.
London dispersion
Dipole-dipole bond
Ion- dipole
H-bonding
30s - Q12
Which of the following substances will dissolve most likely in water?
Hexane (C6H14)
Carbon tetrachloride (CCl4)
Vinegar (CH3COOH)
Oil
30s - Q13
Which of the following molecules has high melting point?
BeCl2
CCl4
BCl3
CHCl3
30s - Q14
This refers to the energy required to increase the surface area by a unit amount.
Viscosity
Density
Vapor pressure
Surface tension
30s - Q15
Which of the following statements is TRUE about nonpolar molecules
Have low vapor pressure
Have low surface tension
Have high boiling point
Have high melting point
30s