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The correct increasing order of bond angles in the following species is:
Which of the following compounds has the lowest melting point?
The angular shape of ozone molecule ($O_3$) consists of:
In the hydrocarbon $\overset{6}{C}H_3-\overset{5}{C}H=\overset{4}{C}H-\overset{3}{C}H_2-\overset{2}{C}\equiv\overset{1}{C}H$, the state of hybridisation of carbons 1, 3 and 5 are in the following sequence:
What is the dominant intermolecular force that must be overcome in converting liquid $CH_3OH$ to a gas?
Which of the following compounds has a higher hydration energy than the lattice energy?
In which of the following molecules are all the bonds not equal?
The electronegativity difference between $\text{N}$ and $\text{F}$ is greater than that between $\text{N}$ and $\text{H}$, yet the dipole moment of $\text{NH}_3$ (1.5 D) is larger than that of $\text{NF}_3$ (0.2 D). This is because:
Which of the following pairs of species have the same bond order?
In which of the following molecules, all atoms are coplanar?
Consider the following species: CN$$^+$$, CN$$^-$$, NO and CN. The highest bond order associated with:
What is the correct order of ionic mobility of the following ions in an aqueous solution?
The correct order of energies of molecular orbitals of N$$_2$$ molecule is:
The correct order of dipole moments for molecules NH$$_3$$, H$$_2$$S, CH$$_4$$ and HF is:
Which one of the following molecules is paramagnetic?
A 300-gram radioactive sample has a half-life of 3 hours. After 18 hours the remaining quantity will be:
Arrange the following hydrides in the order of decreasing bond angle: (A) SbH$$_3$$ (B) AsH$$_3$$ (C) PH$$_3$$ (D) NH$$_3$$
In the given reaction the product P is:
The rate of the reaction $2NO + Cl_2 \rightarrow 2NOCl$ is given by the rate equation $\text{rate} = k[NO]^2[Cl_2]$. The value of the rate constant can be increased by:
Which will make basic buffer?