• 072920 77839
  • info@smartachievers.in
Menu
Back
  • JEE ADVANCE
  • JEE MAIN
  • NEET
  • BITSAT
  • CBSE BOARD
  • UP BOARD
  • CUET
JEE ADVANCE
  • CLASS XI - XII
  • CRASH COURSE
JEE MAIN
  • CLASS XI - XII
  • CRASH COURSE
CRASH COURSE
NEET
  • CLASS XI - XII
  • CRASH COURSE
BITSAT
  • CLASS XI - XII
CBSE BOARD
  • CLASS IX
  • CLASS X
  • CLASS XI
  • CLASS XII
  • CLASS VI
  • CLASS VII
  • CLASS VIII
UP BOARD
  • CLASS IX
  • CLASS X
  • CLASS XI
  • CLASS XII
CUET
  • CRASH COURSE
Courses

Topic Question Set

Q 1 :

Which of the following is least ionic?                             [2024]

  • BaCl2

     

  • AgCl

     

  • KCI

     

  • CoCl2

     

(2)

All chlorides are soluble in water except of Ag+,Hg22+,Pb2+,Cu+,SbO+,BiO+ and Hg2O+. Thus AgCl is water insoluble whereas BaCl2,KCl and CoCl2 are water soluble. As like dissolves like, this gives us an idea that AgCl is least ionic of all. Ag+ has pseudo noble gas configuration [(n-1)s2,(n-1)p6,(n-1)d10 type configuration]. Due to poor shielding of d and f electrons its Zeff is high so polarization power of Ag+ is high. This induces significant covalent character in AgCl.

 

Q 2 :

Arrange the following in increasing order of solubility product :                

Ca(OH)2, AgBr, PbS, HgS                           [2025]
 

  • PbS<HgS<Ca(OH)2<AgBr

     

  • HgS<AgBr<PbS<Ca(OH)2

     

  • Ca(OH)2<AgBr<HgS<PbS

     

  • HgS<PbS<AgBr<Ca(OH)2

     

(4)

Ca(OH)2 can be regarded as a strong base, it is partially soluble in water. AgBr has less covalent character than PbS and HgS as per Fajan’s rule (lesser is charge on cation, lesser is its polarizing power. Lesser is charge on anion, lesser is its polarization). Hg2+ has pseudo noble gas configuration, hence covalent character of HgS is more than that of PbS. More is covalent character, lesser is solubility in water. Hence solubility in water is:  HgS < PbS < AgBr < Ca(OH)2.

 

Q 3 :

Order of Covalent bond:                       

A. KF > KI; LiF > KF

B. KF < KI; LiF > KF

C. SnCl4 > SnCl2; CuCl > NaCl

D. LiF > KF; CuCl < NaCl

E. KF < KI; CuCl > NaCl

Choose the correct answer from the options given below:             [2023]

  • A, B only

     

  • B, C only

     

  • B, C, E only

     

  • C, E only

     

(3)

Order of covalent character bond is

B.  KF < KI and LiF > KF

C. SnCl4 > SnCl2 and CuCl > NaCl

E.  KF < KI and CuCl > NaCl

 

Q 4 :

Given below are two statements:

Statement I: SbCl5 is more covalent than SbCl3.

Statement II: The higher oxides of halogens also tend to be more stable than the lower ones.

In the light of the above statements, choose the most appropriate answer from the options given below:           [2023]

  • Statement I is correct but Statement II is incorrect.

     

  • Statement I is incorrect but Statement II is correct.

     

  • Both Statement I and Statement II are correct.

     

  • Both Statement I and Statement II are incorrect.

     

(3)

The halides in higher oxidation state will be more covalent than the one in lower oxidation state. Higher stability of higher oxides is due to greater polarisability and multiple bond formation.

 

Q 5 :

The number of following factors which affect the percent covalent character of the ionic bond is ________.       [2023]

(A) Polarising power of cation

(B) Extent of distortion of anion

(C) Polarisability of the anion

(D) Polarising power of anion



(3)

According to Fajan’s rule, percent covalent character of ionic bond is affected by A, B and C.