An electrophile reagent is
a) Electron deficient species
b) Electron rich species
c) Negatively charged species
d) A Lewis base

Electron deficient species among the following is

Which of the following is electron deficient species?

Which of the following is electron deficient (Lewis acid ) ?

Nucleophiles and electrophiles are reaction intermediates having electron rich and electron deficient centres respectively . Hence, they tend to attack electron deficient and electron rich centres respectively. Classify the following species as electrophiles and uncheophiles. (i) H_(3)CO^(-) (ii) H_(3)C-overset(O)overset(||)C-O^(-) (iii)Cl (iv) Cl_(2)C: (v) (H_(3)C)_(3)C^(+) (vi) Br^(-) (vii) H_(3)COH (viii) R-NH-R

Which of the following is a one electron species ?

The pair(s) of reagents that yield paramagnetic species is/are

Trinomial nomenclature is used in case of (a) Sympatric species (b) Allochronic species (c) Polytypic species (d) Sibling species

Strongest base out of the given species is

Species very near to extinction if conservation measures are not promptly taken is (a) Threatened species (b) Rare species (c) Endangered species (d) Vulnerable species

In '' rivet - popper hypothesis '' , the wing rivets are compared with (a) dominant species (b) critical link species (c) rare species (d) key stone species