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TLS Online TPP Program

#Question id: 19759

Which of the following sentence is incorrect for covalent bond ?

#XL - P Chemistry
  1. Strenght of covalent bond depenas upon overlapping at atomic orbitals.
  2. Covalent bond is not directional.
  3. There is sharing of electrons between atoms bonded by covalent bond
  4. Covalent bond is formed between atoms having less difference in their electronegativity.
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TLS Online TPP Program

#Question id: 11575

#XL - T Zoology

Fight-or-flight reactions include activation of the ________.
TLS Online TPP Program

#Question id: 8695

#XL - S Microbiology

Phylogenetic trees constructed from evidence from molecular systematics are based on similarities in ________.
TLS Online TPP Program

#Question id: 12789

#XL - R Botany

Which of the following terms encompasses all of the others?
TLS Online TPP Program

#Question id: 8696

#XL - S Microbiology

There is some evidence that reptiles called cynodonts may have had whisker-like hairs around their mouths. If true, then hair is a shared ________.
TLS Online TPP Program

#Question id: 19943

#XL - P Chemistry

Which shape is associated with the orbital designated by n = 2; / =1 ?