27 public questions tagged with this topic.
For N₂ : (sigma 1s)² (sigma^* 1s)² (sigma 2s)² (sigma^* 2s)² (pi 2px)² (pi 2py)² (sigma 2pz)² . Bonding = 10, antibonding = 4. Bond order = (10 - 4/2) = 3 , with all electrons paired (diamagnetic).
Ref: NCERT Class 11 Chemistry > Chapter 4: Chemical Bonding and Molecular Structure > Topic: Molecular Orbital Theory - MOT and Bond Order and Magnetic Properties
For O₂⁻ : (sigma 1s)² (sigma^* 1s)² (sigma 2s)² (sigma^* 2s)² (sigma 2pz)² (pi 2px)² (pi 2py)² (pi^* 2px)² (pi^* 2py)¹ . Bonding = 10, antibonding = 7. Bond order = (10 - 7/2) = 1.5 .
Ref: NCERT Class 11 Chemistry > Chapter 4: Chemical Bonding and Molecular Structure > Topic: Molecular Orbital Theory - MOT and Bond Order and Magnetic Properties
Endemic species are restricted to a particular geographical region and are often more vulnerable to extinction.
Ref: NCERT Class 12 Biology Chapter 13: Biodiversity and Conservation Loss of Biodiversity - Causes - Habitat Loss Overexploitation
Biodiversity hotspots are regions rich in endemic species that have experienced extensive habitat loss and are therefore priorities for conservation.
Ref: NCERT Class 12 Biology Chapter 13: Biodiversity and Conservation Loss of Biodiversity - Causes - Habitat Loss Overexploitation
Human activities have accelerated extinction rates to about 100–1000 times the natural background rate through habitat loss and fragmentation, overexploitation, alien species invasions, and co-extinctions.
Ref: NCERT Class 12 Biology Chapter 13: Biodiversity and Conservation Loss of Biodiversity - Causes - Habitat Loss Overexploitation
A species is a group of individual organisms with fundamental similarities. Closely related species can be distinguished from one another by distinct morphological differences.
Ref: NCERT Class 11 Biology Chapter 1: The Living World Taxonomical Aids - Zoological Parks and Keys
A family is a group of related genera. For example, the genera Panthera and Felis are included in the family Felidae.
Ref: NCERT Class 11 Biology Chapter 1: The Living World Taxonomic Categories - Family Order Class Phylum Kingdom
As one moves from species towards kingdom, the categories become broader and include more organisms, while the number of common characteristics decreases.
Ref: NCERT Class 11 Biology Chapter 1: The Living World Taxonomic Categories - Species and Genus
Species is the lowest taxonomic category among the given options. Members of a lower taxon share more common characteristics than members of a higher taxon.
Ref: NCERT Class 11 Biology Chapter 1: The Living World Taxonomic Categories - Species and Genus
Species is the lowest category among the given options. Members of a lower taxon share more common characteristics than members of a higher taxon.
Ref: NCERT Class 11 Biology Chapter 1: The Living World Taxonomic Categories - Species and Genus
A species is a group of individual organisms with fundamental similarities. Closely related species can be distinguished from one another by distinct morphological differences.
Ref: NCERT Class 11 Biology Chapter 1: The Living World Diversity in the Living World
Identification involves correctly describing an organism and determining the organism to which a particular name is attached.
Ref: NCERT Class 11 Biology Chapter 1: The Living World What is Living? Characteristics of Living Organisms
