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Which of the following species contains three bond pairs and one lone pair around the central atom?
In a regular octahedral molecule, $MX_{6}$, the number of $X–M–X$ bonds at 180º is:
The pair of species with the same bond order is:
Consider the given compound: In the given options, the following for the above compound are, respectively: (i) $sp^{2}$ hybridised carbon atoms and (ii) $\pi$ bonds.
Which orbital does the additional electron occupy when $O_{2}$ is converted to the $O_{2}^{-}$ ion?
In the reaction given below, the product "X" is: $Na_2B_4O_7 \xrightarrow{heat} X + NaBO_2$
The correct order of increasing bond angles in the following species is:
The most preferred structure among the following with the lowest energy for $SO_{3}$ is:
The correct order of C-O bond length among CO, $CO_3^{2-}$, and $CO_2$ is:
Which of the following is incorrect statement?
The correct order of increasing bond order among the given is:
Which of the following is the most basic oxide?
Which of the following species contains equal number of $\sigma$ and $\pi$ bonds?
The compound that forms a linear polymer due to hydrogen bonding is:
Among the following, the pair in which the two species are not isostructural is:
A species that does not exhibit paramagnetism is:
Increasing order of bond length is:
$H_{2}O$ is dipolar, whereas $BeF_{2}$ is not. It is because:
The number of hydrogen bonded water molecules(s) associated with CuSO₄·5H₂O is:
The concentration of $ZnCl_2$ solution will change when it is placed in a container which is made of: