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List of top Chemistry Questions on Chemical bonding and molecular structure asked in LPUNEST

The $\text{pH}$ of pure water at $25^{\circ}\text{C}$ is:
  • LPUNEST - 2026
  • LPUNEST
  • Chemistry
  • Chemical bonding and molecular structure
The one which decreases with dilution is:
  • LPUNEST - 2025
  • LPUNEST
  • Chemistry
  • Chemical bonding and molecular structure
The hybridization of atomic orbitals of N in NO$_2^-$, NO$_3^-$ and NH$_4^+$ are respectively
  • LPUNEST - 2024
  • LPUNEST
  • Chemistry
  • Chemical bonding and molecular structure
For the following question, enter the correct numerical value up to TWO decimal places. If the numerical value has more than two decimal places, round-off the value to TWO decimal places. (For example: Numerical value 5 will be written as 5.00 and 2.346 will be written as 2.35) A diatomic molecule has a dipole moment of \(1.2\,\text{D}\). If the bond distance is \(1.0\,\text{\AA}\), the fraction of an electronic charge on each atom is _____
  • LPUNEST - 2023
  • LPUNEST
  • Chemistry
  • Chemical bonding and molecular structure
In which pair or pairs is the stronger bond found in the first species? I: \(O_2^{2-},\, O_2\)
II: \(N_2,\, N_2^+\)
III: \(NO^+,\, NO\)
  • LPUNEST - 2023
  • LPUNEST
  • Chemistry
  • Chemical bonding and molecular structure
Number of bonding pairs (X) and lone pairs (Y) around the central atom in the \(I_3^-\) ion is
  • LPUNEST - 2023
  • LPUNEST
  • Chemistry
  • Chemical bonding and molecular structure
Octet rule is not followed in
  • LPUNEST - 2023
  • LPUNEST
  • Chemistry
  • Chemical bonding and molecular structure