Question
Explain the shapes of different atomic orbitals.
✓
Answer
SELF
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Equal volumes of $0.002M$ solutions of sodium iodate and cupric chlorate are mixed together. Will it lead to precipitation of copper iodate? (For cupric iodate $K_{sp} = 7.4 \times 10^{–8}$).
→Yellow light emitted from a sodium lamp has a wavelength $(\lambda)$ of 580 nm. Calculate the frequency (ν) and wavenumber $(\bar{\text{v}})$ of the yellow light.
→What will be the minimum pressure required to compress $500 \mathrm{dm}^3$ of air at 1 bar to $200 \mathrm{dm}^3$ at $30^{\circ} \mathrm{C}$ ?
→What is overlapping of atomic orbitals? How many types are there? Discuss in detail.
- Define standard enthalpy of formation. Explain why the enthalpy changes for the reaction given below are not enthalpies of formation of $CaCO_3$ and HBr:
- $\text{CaO(s)}+\text{CO}_2(\text{g})\overrightarrow{\ \ \ \ \ \ \ \ }\ \text{CaCO}_3(\text{s});$ $\Delta_\text{r}\text{H}^\circ=-178.3\text{kJ mol}^{-1}$
- $\text{H}_2(\text{g})+\text{Br}_2(\text{g})\overrightarrow{\ \ \ \ \ \ \ }\ 2\text{HBr(g)};$ $\Delta_\text{r}\text{H}^\circ=-72.8\text{kJ mol}^{-1}$
- Use the bond enthalpies listed below to determine the enthalpy of reaction:
Bond enthalpy $(\Delta\text{H}^\circ)/\text{kJ mol}^{-1}$ of C=O = 741; C-H = 414; H-O = 464; O=O = 498.
How can we calculate the equivalent weight of oxidants and reductants?
In the estimation of sulphur by Carius method, 0.468g of an organic sulphur compound afforded 0.668g of barium sulphate. Find out the percentage of sulphur in the given compound.
- Predict the sign of the entropy change for each of the following changes:
- Hg(l) → Hg(g)
- Steam → Water
- Define Gibb's Energy. Give its mathematical expression. What is Gibb's energy criteria for spontaneity.
- Give a brief note on the following thermodynamic terms:
- Standard enthalpy of combustion.
- Standard enthalpy of formation.
The ionization constant of nitrous acid is $4.5 \times 10^{–4}$. Calculate the pH of $0.04M$ sodium nitrite solution and also its degree of hydrolysis.
→