In carbide ion, two carbon atoms are joined by .

Important Questions on Chemical Bonding and Molecular Structure

EASY

11th ICSE

IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 4 - Chemical Bonding and Molecular Structure>Chapter Practice>Q 2

The molecule of hydrogen atom is formed due to the overlapping of orbitals of two hydrogen atoms. Which of the following types of overlapping takes place in the formation of ${\mathrm{H}}_2$ molecule?

MEDIUM

11th ICSE

IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 4 - Chemical Bonding and Molecular Structure>Chapter Practice>Q 2

The valence bond theory explains the shape, the formation and directional properties of bonds in polyatomic molecules like ${\mathrm{CH}}_4, {\mathrm{NH}}_3$,${\mathrm{H}}_2\mathrm{O}$, etc. in terms of 

MEDIUM

11th ICSE

IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 4 - Chemical Bonding and Molecular Structure>Chapter Practice>Q 2

Lewis approach helps in writing the structure of molecules but fails to explain 

MEDIUM

11th ICSE

IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 4 - Chemical Bonding and Molecular Structure>Chapter Practice>Q 2

Which of the following has minimum bond length?

HARD

11th ICSE

IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 4 - Chemical Bonding and Molecular Structure>Chapter Practice>Q 2

In which of the following pairs of molecules / ions both the species are not likely to exist?

HARD

11th ICSE

IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 4 - Chemical Bonding and Molecular Structure>Chapter Practice>Q 2

The pair of species with the same bond order is 

MEDIUM

11th ICSE

IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 4 - Chemical Bonding and Molecular Structure>Chapter Practice>Q 2

Nitrogen, oxygen and fluorine are the highly electronegative elements. When they are attached to a hydrogen atom to form a covalent bond, the electrons of the covalent bond are shifted towards the more electronegative atom. This partially positively charged hydrogen atom forms a bond with the other more electronegative atom. This bond is known as:

MEDIUM

11th ICSE

IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 4 - Chemical Bonding and Molecular Structure>Chapter Practice>Q 4

Choose the compounds containing ionic, covalent and coordinate bonds out of the following ${\mathrm{MgCl}}_2, {\mathrm{CH}}_4, \mathrm{CaO}, \mathrm{HCl}, {{\mathrm{NH}}_4}^{+}$ and ${\mathrm{O}}_3$.