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Which of the following statement is irrelevant for sigma bond ?
The strength of a sigma bond is indeed related to the overlapping of atomic orbitals. A stronger sigma bond is formed due to greater overlap between atomic orbitals. Therefore, the statement 'strength of sigma bond is not related with overlapping of atomic orbitals' is irrelevant.
In which molecule inter molecular hydrogen bond can be form ?
Which of the following pair possesses very strong H - bond ?
Formic acid (HCOOH) and acetic acid (CH_3COOH) both have the ability to form strong hydrogen bonds due to the presence of highly electronegative oxygen atoms bonded to hydrogen. This results in a very strong hydrogen bond between these molecules.
Which of the following relation is correct ?
The correct relation is: Bond order is directly proportional to bond energy and inversely proportional to bond length. This means higher bond order indicates greater bond energy and shorter bond length, contributing to the stability of the molecule. Therefore, the relation is $Bond order \alpha Bond energy \alpha {1 \over Bond length} \alpha stability$.
Which of the following is correct?
factual
In water bond angle is $104 ^\circ 30 $ because
In which of the following strong H-bond is present ?
Which is correct order for bond dissociation energy in $ O_2 , O_2^+ , O_2 ^- AND O_2^{2-} $
Bond order $O_2^+ = 2.5 $ $ O_2 = 2 $ $ O_2^- = 1.5 $ $ O_2 ^ {-2} = 1 $
O, P, Q, R elements electronic configuration is given below $O = 1s^2$ $Q = 1s^2 , 2s^ 2 , 2p^5$ $P = 1s^2 , 2s^2 , 2p^2 $ $ R = 1s^2 , 2s^2 , 2p^6$ .Which atom has strong behaviour of electrovalent bond ?
Electrovalent bond (ionic bond) formation involves transfer of electrons from one atom to another, typically between a metal and a nonmetal. In the given configurations, element Q ($1s^2, 2s^2, 2p^5$) is one electron short of a stable noble gas configuration (like element R with $1s^2, 2s^2, 2p^6$). Hence, Q has a strong tendency to gain an electron, making it highly electrovalent.
Which of the following species is more stable ?
The stability of diatomic molecules can be compared using Molecular Orbital Theory. According to this theory, the bond order of $O_2$ is 2, which makes it more stable compared to $O_2^-$ (bond order 1.5), $Ne_2^+$ (bond order 0.5, unstable), and $F_2$ (bond order 1). Therefore, $O_2$ is the most stable species among the given options.
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The bank mixes NEET previous year questions (PYQs) with practice questions, each tagged with its exam appearances where applicable.