Chemical Bonding

The elevtrovalence is thus __(a)__ to the number of unit charge on __(b)__ ?

• a : half ; b : stable atom

• a : equal ; b : ion

• a : equal ; b : anion

Hybrid orbitals are more stable bond than atomic orbitals

• True

• False

Lewis postulated that atoms the noble octet when they are linked by _____ .

• Ionic bonds

• Covalent bonds

• Chemical bonds

In periodic table, the highly electronegative halogens and the highly electropositive alkali metals are separated by ____ .

• Actinoids and lanthanides

• Noble gases

• d- block elements

In which of the following orbitals atoms do not go in excited state?

• BeF₂

• BCl₃

• CH₄

• NH₃

Tags

NGSS.HS-PS1-1

Which excited state of Boron (B) in BCl3 participate to form hybridised orbitals before reacting with Chlorine (Cl) ?

• 3

• 1

• 2

• None of the above

Find out total number of of bond pair and lone pair in XeF3+

• LP-2 BP-3

• LP-3 BP-2

• LP-0 BP-0

Geometry having ____ Repulsion b/w electron pair is most suitable electronic geometry.

• Minimum

• Maximum

• Neutral

State the electronic geometry , Bond angle and Molecular shape of SO2 Molecule

• Tetrahedral ,109.5°, Trigonal pyramidal

• Trigonal planar ,120°, Trigonal planar

• Trigonal planar , less than 120°, Angular/Bent

• None of the above

• A-3 , B-2 , C-4 , D-1

• A-1 , B-2 , C-3 , D-4

• A-4 , B-1 , C-2 , D-3

• None of the above