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In a regular octahedral molecule, $MX_{6}$, the number of $X–M–X$ bonds at 180º is:
Which of the two species, $NO_{3}^{-}$ or $H_{3}O^{+}$, has the correctly described properties listed below?
Which one of the following bonds produces a solid that reflects light in the visible region and whose electrical conductivity decreases with temperature and has a high melting point?
The incorrect statement among the following for sigma- ($\sigma$) and pi- ($\pi$) bonds formed between two carbon atoms is:
The pair of species with the same bond order is:
A diatomic molecule, among the following species, that only has $\pi$ bonds according to the Molecular Orbital Theory (MOT) is:
In which of the following pairs, the two species are iso-structural?
Which of the following set of molecules will have zero dipole moment?
The potential energy (y) curve for $H_{2}$ formation as a function of internuclear distance (x) of the $H$ atoms is shown below. The bond energy of $H_{2}$ is:
$H_{2}O$ is dipolar, whereas $BeF_{2}$ is not. It is because:
The relation between $\Delta E$ and $\Delta H$ is:
Which molecule among the following is non-polar?
Match the oxide given in Column-I with its property given in Column-II: **Column-I** (i) $Na_2O$ (ii) $Al_2O_3$ (iii) $N_2O$ (iv) $Cl_2O_7$ **Column-II** (a) Neutral (b) Basic (c) Acidic (d) Amphoteric Which of the following options is correct?
Match the following oxides with their nature: **Column I** (a) CO (b) BaO (c) Al₂O₃ (d) Cl₂O₇ **Column II** (i) Basic (ii) Neutral (iii) Acidic (iv) Amphoteric
The dipole moment of compound AB is 10.92 D and that of compound CD is 12.45 D. If the bond length of AB is 2.72 $\text{\AA}$ and that of CD is 2.56 $\text{\AA}$, then for these compounds the correct statement is:
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:
From his experiments, S.L. Miller produced amino acids by mixing the following in a closed flask
A species that does not exhibit paramagnetism 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
The correct shape and hybridisation for $\text{XeF}_4$ are: