WorksheetsShort Quiz Chapter 3
Total questions: 15
Worksheet time: 1hrs 15mins
Name
Class
Date
1.
The electronegativities of some atoms are given below :
H : 2.1, C : 2.5, Cl : 3.0, O : 3.5, F : 4.0.
Which of the following bonds is most polar?
H : 2.1, C : 2.5, Cl : 3.0, O : 3.5, F : 4.0.
Which of the following bonds is most polar?
a)
O - F
b)
Cl - H
c)
C - F
d)
F - F
2.
Which species has a trigonal planar shape?
a)
BF3
b)
PCl3
c)
ClO3-
d)
SO32-
3.
The atoms X and Y have the following electronic configurations :
X : 1s2 2s2 2p6 3s2 3p6 3d10 4s2
Y : 1s2 2s2 2p4
X and Y are expected to form a compound with the formula ......
X : 1s2 2s2 2p6 3s2 3p6 3d10 4s2
Y : 1s2 2s2 2p4
X and Y are expected to form a compound with the formula ......
a)
X2+(Y-)2
b)
X2+Y2-
c)
(X2+)2Y2-
d)
(X+)2Y2-
4.
Which of the following molecules has bond angles of 90 and 120° ?
a)
CCl4
b)
PCl5
c)
SF6
d)
SO32-
5.
Two liquids P and Q of the same volume are allowed to evaporate. It is found that P evaporates first before Q does. Which statement explains this observation?
a)
The vapour pressure of P is lower than that of Q
b)
The intermolecular force of P is weaker than that of Q
c)
The density of Q is higher than that of P
d)
Q is more viscous than P
6.
Which of the following substances does not contain a coordinate bond?
a)
NH3
b)
NH4+
c)
H3O+
d)
Al2Cl6
7.
Which of the following has van der Waals forces?
a)
Sulphur
b)
Diamond
c)
Sodium chloride
d)
Magnesium oxide
8.
The strength of intermolecular forces determines the boiling point of a substance. Which hydride has the lowest boiling point?
a)
PH3
b)
NH3
c)
H2O
d)
HF
9.
The boiling points of HCl and HBr are -85°C and -66°C respectively. What is the cause of the difference in the boiling point?
a)
The H-Cl bond is stronger than the H-Br bond
b)
Hydrogen bond exist between HCl molecules
c)
HBr molecule is larger than HCl molecule
d)
The electronegativity of chlorine is higher than that of bromine
10.
Which of the following statements about s and p orbitals not true?
a)
s orbital can form only σ bond
b)
p orbitals can form both σ and ∏ bonds
c)
s orbitals only are involved in forming H - Cl bond
d)
s and p orbitals are involved in forming O-H bonds in H2O
11.
A metal ion can be formed most easily if .....
a)
the charge on the metal ion is high
b)
the metal has high ionization energy
c)
the size of the atom is large
d)
the size of the atom is small
12.
In which of the following pairs do the hydrogen bonds exist in both compounds?
a)
Liquid NH3 and liquid HF
b)
Liquid NH3 and liquid HCl
c)
Liquid HF and liquid CH4
d)
Liquid HCl and liquid CH4
13.
The ions AlBr2+, CO32- and SO42- have the bond angles a, b and c respectively.
Which of the following comparisons in bond angles is correct?
Which of the following comparisons in bond angles is correct?
a)
a > b
b)
b < c
c)
a < c
d)
a = b
14.
Which of the following compounds is expected to have the highest boiling point?
a)
CH3CH2CH2CH2CH2OH
b)
(CH3)3CCH2OH
c)
CH3COCH2CH2CH3
d)
CH3CH2CH2CH2CH3
15.
Which of the following forms hydrogen bonding with water when they are dissolved in water?
I C2H5OH
II H2NCH2COOH
III HCl
IV NaOH
I C2H5OH
II H2NCH2COOH
III HCl
IV NaOH
a)
I and II
b)
II and III
c)
III and IV
d)
I, II, III and IV
100 %
