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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.
In the reaction given below, the product "X" is: $Na_2B_4O_7 \xrightarrow{heat} X + NaBO_2$
The most preferred structure among the following with the lowest energy for $SO_{3}$ is:
Which of the following is incorrect statement?
Which of the following is the most basic oxide?
Which of the following species contains equal number of $\sigma$ and $\pi$ bonds?
Among the following, the pair in which the two species are not isostructural is:
Increasing order of bond length is:
The number of hydrogen bonded water molecules(s) associated with CuSO₄·5H₂O is:
Match the compounds given in Column I with the hybridization and shape given in Column II and mark the correct option. **Column I** (A) XeF₆ (B) XeO₃ (C) XeOF₄ (D) XeF₄ **Column II** (1) Distorted octahedral (2) Square planar (3) Pyramidal (4) Square pyramidal
If the main axis of a diatomic molecule is z, then the molecular orbital $p_x$ and $p_y$ overlap to form which of the following orbital:
Which of the following set of molecules will have zero dipole moment?
$BF_3$ is a planar and an electron-deficient compound. Hybridisation and the number of electrons around the central atom, respectively, are:
In which of the following molecules, all atoms are coplanar?
Match the molecules in List-I with the corresponding shape in List-II: List-I (Molecules): (a) $NH_3$ (b) $ClF_3$ (c) $PCl_5$ (d) $BrF_5$ List-II (Shape): (i) Square pyramidal (ii) Trigonal bipyramidal (iii) Trigonal pyramidal (iv) T-shape Choose the correct answer from the options given below:
Which of the following pairs share both isoelectronicity and isostructural characteristics? $\text{NO}_3^-$, $\text{CO}_3^{2-}$, $\text{ClO}_3^-$, $\text{SO}_3$
Which of the following pairs of compounds is isoelectronic and isostructural?
The incorrect statement among the following regarding the molecules of $\text{CH}_4$, $\text{NH}_3$, and $\text{H}_2\text{O}$ is: