XeF2 is isostructural with from Chemistry Chemical Bonding and M

Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.
Advertisement

 Multiple Choice QuestionsMultiple Choice Questions

611.

The correct order of decreasing length of the bond as indicated by the arrow in the following structures is

  • I > II > III

  • II > I > III

  • III > II > I

  • I > III > II


612.

In case of heteronuclear diatomics of the type AB, where A is more electronegative than B, bonding molecular orbital resembles the character of A more than that of B. The statement 

  • is false

  • is true

  • cannot be evaluated since data is not sufficient

  • is true only for certain systems


613.

Dipole-induced dipole interactions are present in which of the following pairs?

  • H2O and alcohol

  • Cl2 and CCl4

  • HCl and He atoms

  • SiF4 and He atoms


614.

Which of  the following structure is similar to graphite?

  • CO

  • O2-

  • CN-

  • NO+


Advertisement
615.

The bond angle in NF3 (102.3°) is, smaller than NH3 (107.2°). This is because of

  • large size of F compared to H

  • large size of N compared to F

  • opposite polarity of N in the two molecules

  • small size of H compared to N


616.

The structure of XeF6 is experimentally determined to be distorted octahedron. Its structure according to VSEPR theory is

  • octahedron

  • trigonal bipyramid

  • pentagonal bipyramid

  • tetragonal bipyramid


Advertisement

617.

XeF2 is isostructural with

  • TeF2

  • ICl2-

  • SbCl3

  • BaCl2


B.

ICl2-

Species having the same number of bond pairs and lone pairs are isostructural (have same structure).

                           

Species lp + bp Structure
XeF2 4lp + 2bp

Linear 

TeF2 2lp + 2bp

Angular or V - Shaped

ICl2- 4lp + 2bp

Linear 

BaCl2 0lp + 2bp  Cl-Ba-Cl (linear)

Thus, XeF2 is isostructural with ICl2- and BaCl2.

 

 


Advertisement
618.

In the following electron-dot structure calculate the formal charge from left to right nitrogen atom; N....=N=N.... :

  • -1 , -1 , +1

  • -1 , +1 , -1

  • +1 , -1 , -1

  • +1 , -1 , +1


Advertisement
619.

The sp3d2 hybridisation of central atom of a molecule would lead to:

  • square planar geometry

  • tetrahedral geometry

  • trigonal bipyramidal geometry

  • octahedral geometry


620.

Which one of the following molecules contain no π-bond?

  • CO2

  • H2O

  • SO2

  • NO2


Advertisement