Question
- What is the main difference between electro magnetic waves theory and Planck's quantum theory.
- Which rule is violated in the following orbital diagram:
✓
Answer
- Electromagnetic Waves Theory: Energy is radiated or absorbed continuously.
- Hund's rule is being violated: Because orbitals having equal energy should be singly filled first and then pairing of electron should take place.
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Similar questions
Consider the following structure:
$\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ {\text{O}}\\\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \|\\\ ^1\text{C}_3-\ ^2\text{CH}_2-\ ^3\text{C}-\ ^4\text{C}_2-\ ^5\text{C}\equiv\ ^6\text{CH}$
→$\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ {\text{O}}\\\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \|\\\ ^1\text{C}_3-\ ^2\text{CH}_2-\ ^3\text{C}-\ ^4\text{C}_2-\ ^5\text{C}\equiv\ ^6\text{CH}$
- How many σ and π-bonds are present in this compound?
- Arrange carbon no. 2, 3, 5 in decreasing order of s-character.
- Which atoms have same hybrid state?
Decide whether each of the following reaction involves oxidation reduction reaction or not. If it does, identify which species is oxidised and which gets reduced?
→- $\ \ \ \ \ \ \ \ \ {\text{O}\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{OH}}\\\ \ \ \ \ \ \ \ \ \ \|\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\\ 4\text{CH}_3\text{CCH}_3+\text{LiAlH}_4+4\text{H}_2\text{O}\rightleftharpoons4\text{CH}_3\text{CHCH}_3+\text{LiOH}+\text{Al}(\text{OH})_3$
- $\text{CH}_3\text{CH}_2\text{OH}\xrightarrow{\ \text{H}_2\text{SO}_4\ \ }\text{CH}_2=\text{CH}_2+\text{H}_2\text{O}$
- $\ \ \ \ \ \ \ {\text{O}\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{O}}\\\ \ \ \ \ \ \ \ \|\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \|\\\text{CH}_3\text{C OH}+\text{CH}_3\text{NH}_2\rightleftharpoons\text{CH}_3\text{CO}^-+\text{CH}_3\text{NH}^+_3$
Write a relation between $\Delta\text{G}$ and Q and define the meaning of each term and answer the following:
→- Why a reaction proceeds forward when Q < K and no net reaction occurs when Q = K.
- Explain the effect of increase in pressure in terms of reaction quotient Q. for the reaction: $\text{CO(g)}+\text{3H}_2\text{(g)}\rightleftharpoons\text{CH}_4\text{(g)}+\text{H}_2\text{O(g)}$
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- Which orbitals are filled with electrons in third period?
- Which of the lanthanoids is man-made element?
- To which series do man-made elements belong?
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What would have happened if the greenhouse gases were totally missing in the earth’s atmosphere? Discuss.
Neutral solutions have pH = 7 at 298K. A sample of pure water is found to have pH < 7. Does it mean that it is acidic? Explain.
- How does Ionic radii vary with effective nuclear charge? Give example.
- An element belongs to 3rd period and group-13 of the periodic table. Identify the element and write two properties of element.
If $6.022 \times 10^{23}$ molecules of $\mathrm{N}_2$, react completely with $\mathrm{H}_2$ according to the equation:
$\mathrm{N}_2(\mathrm{~g})+3 \mathrm{H}_2(\mathrm{~g}) \rightarrow 2 \mathrm{NH}_3(\mathrm{~g})$
then calculate the number of molecules of $\mathrm{NH}_3$ formed.
→$\mathrm{N}_2(\mathrm{~g})+3 \mathrm{H}_2(\mathrm{~g}) \rightarrow 2 \mathrm{NH}_3(\mathrm{~g})$
then calculate the number of molecules of $\mathrm{NH}_3$ formed.