1. INORGANICCHEMISTRY
Daily Practice Problems
Q.1 The formationofionic solids fromthe elements is anexothermic process. This isprimarilydue to
(A) The low values for vaporisationofthe metals (B) Theelectronaffinityterm
(C) The large values ofthe Latticeenergyofthese solids.(D) The low values for I.E. ofthe metals
Q.2 Given the electronegativities of three elements
x = 1.0 y = 2.5 z = 3.0
Type of bonding formed between xz and yz respectively would be:
(a) Covalent, ionic (b) Ionic, covalent
(c) Polar covalent, covalent (d) None of the above
Q.3 CO2
is isosteric with:
(1) HgCl2
(2) SnCl2
(3) C2
H2
(4) NO2
The correct answer is :
(a) 1, 2 (b) 2, 3 (c) 1, 3 (d) 2, 4
Q.4 Which of the following is not applicable-
(A) CO2
irregular geometry (B) BF3
regular geometry
(C) NH3
irregular geometry (D) SO2
irregular geometry
Q.5 C-C bond in C2
H6
undergoes heterolytic fission, the hybridisation of Carbon is/are 
(A) SP2
(B) SP3
(C) SP2
, SP3
(D) SP, SP2
Q.6 The halogen form compounds among thenselves with formula XX’, X '
3
X , X '
5
X , X '
7
X where X is
the heavier halogen. Which of the following pairs representing their structures and being polar and
non-polar are correct-
(A) XX’LinearPolar (B) X '
3
X T-shapedPolar
(C) X '
5
X Square PyramidalPolar (D) X '
7
X PBPNon Polar
Q.7 The value ofH0
forthe reactions Cu+
(g)+ I–
(g)  CuI(g)is –446 KI. Ifthe I.E. ofCu(g)is 745 kJ/mol
and the E.A. ofI (g) is –295 kJ/mol, thenthe value ofH0
for the formationofone mole ofCuI(g) ion–
pairs fromCu(g) and I(g) is
(A) –446 kH (B) 450 KI (C) 594 kJ (D) 4 kJ
Q.8 Whichofthe following reactions are not possible/possible?
(a) Sn2+
+ 2Hg2+
 Hg2
2+
+ Sn+4
(b) Ge2+
+ Pb4+
 Pb2+
+ Ge+4
(c) Tl+1
+ Ga3+
 Ga+
+ Tl3+
Q.9 Predict the shapes of (a) TeCl4
(b)ClO3
(c) Cl 
3
O
Q.10 Cl 
2
F is linear but the ion Cl 
2
F is bent explain.
CLASS : XI(J) DPP. NO.-17

2. INORGANICCHEMISTRY
Daily Practice Problems
Q.1 Discuss the hybridization and shapes ofthe following species–
(a) (NH3
)2+
(b) CH3
+
(c) NO2
–
(d) NO2
+
(e) H2
O2+
(f) ICl4
–
(g) OSF2
(h) O2
SF2
(i) OSF4
(j) TeCl4
(k) ClO3
+
Q.2 Why?
Q.3 Which one ofeach ofthe following pairs is expected to have the largerbond angle?
(a) H2
O & NH3
(B) SF2
& BeF2
(C) BF3
& BF4
–
(D) NH3
& NF3
Q.4 Polarisation may be called as the distortion of the shape of an anion by an adjacently placed cation.
Whichofthe following statement(s) is(are) not correct?
(A*) Minimumpolarisationis brought about bya cation oflow radius.
(B*)Alarge cation is likelyto bring about a largedegree ofpolarisation.
(C) Maximumpolarisation is brought about bya cation ofhigh charge
(D)*)Asmallanion is likelyto undergo a large degree ofpolarisation
Q.5 Compare polarizing power ofthe following ions Li+
, Be2+
, B3+
& Na+
Q.6 Whichcharge the following atoms would bearin the following ofanionic bond. Justify.
(a) Cs+
, Cs2+
(b) Ba+
, Ba2+
, Ba3+
(c)Al+
,Al3+
(d) O2–
, O4+
, O6+
(e) Pb2+
, Pb4+
Q.7 At 1 atmpressure and300 K, densityofHFmolecules is3.25 gm/lt. NumberofHFmolecules associated
in a cluster is
(A) 2 (B) 3 (C*) 4 (D) 6
Q.8 What is uncertainityinlocationofaprotonofwavelength5000Åifwavelengthis knownto anaccuracy
of 1 pm?
(A) 8 × 10–14
m (B) 0.02 m (C) 3.9 × 10–8
m (D) none
Q.9 (a) Increasing covalent character TiCl2
, TiCl3
,TiCl4
(b) Increasingionic character VCl2
, VCl3
, VCl4
Q.10 Ameasurement establishespositionofaprotonwithanaccuracyof10–10
m.Findtheminimumuncertainity
in proton’s position1 second later.
CLASS : XI(J) DPP. NO.-18