English
Karnataka Board PUCPUC Science Class 11

Match the species given in Column I with the hybridisation given in Column II. Column I Column II (i) Boron in [B(OH)4]– (a) sp2 (ii) Aluminium in [Al(H2O)6]3+ (b) sp3 (iii) Boron in B2H6 (c) sp3d2

Advertisements
Advertisements

Question

Match the species given in Column I with the hybridisation given in Column II.

Column I Column II
(i) Boron in [B(OH)4] (a) sp2
(ii) Aluminium in [Al(H2O)6]3+ (b) sp3
(iii) Boron in B2H6 (c) sp3d2
(iv) Carbon in Buckminsterfullerene  
(v) Silicon in \[\ce{SiO^{4-}4}\]  
(vi) Germanium in [GeCl6]2–  
Match the Columns
Advertisements

Solution

Column I Column II
(i) Boron in [B(OH)4] (b) sp3
(ii) Aluminium in [Al(H2O)6]3+ (c) sp3d2
(iii) Boron in B2H6 (b) sp3
(iv) Carbon in Buckminsterfullerene (a) sp2
(v) Silicon in \[\ce{SiO^{4-}4}\] (b) sp3
(vi) Germanium in [GeCl6]2– (c) sp3d2

Explanation:

(i) Boron in [B(OH)4] is sp3

(ii) Aluminium in [Al(H20)6]3+ is sp3d2 hybridized

(iii) Boron in B2H6 is sp3

(iv) Carbon in Buckminsterfullerene sp2 is hybridised.

(v) Silicon in \[\ce{SiO^{4-}4}\] is sp3

(vi) Germanium in [GeCl6]2- is sp3d2

shaalaa.com
  Is there an error in this question or solution?
Chapter 11: The p-block Elements - Multiple Choice Questions (Type - I) [Page 140]

APPEARS IN

NCERT Exemplar Chemistry Exemplar [English] Class 11
Chapter 11 The p-block Elements
Multiple Choice Questions (Type - I) | Q 38 | Page 140

RELATED QUESTIONS

How can you explain higher stability of BClas compared to TlCl3?


Suggest reasons why the B–F bond lengths in BF3 (130 pm) and `"BF"_4^(-)` (143 pm) differ.


How would you explain the lower atomic radius of Ga as compared to Al?


In some of the reactions thallium resembles aluminium, whereas in others it resembles with group I metals. Support this statement by giving some evidences.


Write a balanced equation for B2H6 + NH3 → ?


Which of the following statements are correct. Answer on the basis of Figure.

(i) The two birdged hydrogen atoms and the two boron atoms lie in one plane;

(ii) Out of six B – H bonds two bonds can be described in terms of 3 centre 2-electron bonds.

(iii) Out of six B – H bonds four B – H bonds can be described in terms of 3 centre 2 electron bonds;

(iv) The four-terminal B – H bonds are two centre-two electron regular bonds.


When BCl3 is treated with water, it hydrolyses and forms [B[OH]4] only whereas AlCl3 in acidified aqueous solution forms [Al(H2O)6]3+ ion. Explain what is the hybridisation of boron and aluminium in these species?


Explain the following:

Electron gain enthalpy of chlorine is more negative as compared to fluorine.


Identify the compounds A, X and Z in the following reactions:

\[\ce{A + 2HCl + 5H2O -> 2NaCl + X}\]


Identify the compounds A, X and Z in the following reactions:

\[\ce{X ->[Δ][370 K] HBO2 ->[Δ][> 370 K] Z}\]


Describe the general trends in the following properties of the elements in Groups 13 and 14.

Oxidation states


Account for the following observations:

The +1 oxidation state of thallium is more stable than its +3 state.


Three pairs of compounds are given below. Identify that compound in each of the pairs which has group 13 element in more stable oxidation state. Give reason for your choice. State the nature of bonding also.

TlCl3, TlCl


Three pairs of compounds are given below. Identify that compound in each of the pairs which has group 13 element in more stable oxidation state. Give reason for your choice. State the nature of bonding also.

InCl3, InCl


Boron fluoride exists as BF3 but boron hydride doesn’t exist as BH3. Give reason. In which form does it exist? Explain its structure.


A nonmetallic element of group 13, used in making bullet proof vests is extremely hard solid of black colour. It can exist in many allotropic forms and has unusually high melting point. Its trifluoride acts as Lewis acid towards ammonia. The element exihibits maximum covalency of four. Identify the element and write the reaction of its trifluoride with ammonia. Explain why does the trifluoride act as a Lewis acid.


Boron compounds behave as Lewis acids because of their ______.


A group 13 element ‘X’ reacts with chlorine gas to produce a compound XCl3. XCl3 is electron deficient and easily reacts with NH3 to form \[\ce{Cl3X –> NH3}\] adduct; however, XCl3 does not dimerize X is ______.


Which one of the following is the correct statement?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×