Chemical Bonding CBSE

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

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

• Ionic bonds

• Covalent bonds

• Chemical bonds

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

• BeF₂

• BCl₃

• CH₄

• NH₃

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

Ionic bonds will be formed more easily between elements with low ionization enthalpy and

According to Lewis, in a covalent bond, the ______ is given by the number of bonds between two atoms in a molecule.

In drawing a Lewis structure, each nonmetal atom except hydrogen should be surrounded by

• 2 electrons
• 4 electrons
• 8 electrons
• 12 electron

• 5 electron

June 2015 6: At STP, which substance has metallic bonding?

• ammonium chloride

• barium oxide

• iodine

• silver

August 2015 #39: What is the number of pairs of electrons shared in a molecule of N2?

• 1

• 2

• 3

• 6

June 2004 #13: Compared to the physical and chemical properties of the compound NO2, the compound N2O has

• Different physical properties and different chemical properties

• Different physical properties and the same chemical properties

• The same physical properties and different chemical properties

• The same physical properties and the same chemical properties