Question
Give conversion in three steps: Nitrobenzene into chlorobenzene.
✓
Answer
→Nitrobenzene into chlorobenzene
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Calculate the standard cell potentials of galvanic cell in which the following reactions take place:
Fe2+(aq) + Ag+ (aq) → Fe3+(aq) + Ag(s)
Calculate the $\triangle_\text{r}\text{G}^\ominus$ and equilibrium constant of the reactions.
→Fe2+(aq) + Ag+ (aq) → Fe3+(aq) + Ag(s)
Calculate the $\triangle_\text{r}\text{G}^\ominus$ and equilibrium constant of the reactions.
$Pt ( IV ), NH _3, Cl ^{-}$and $Na ^{+}$combine with each other to form seven types of complex compounds.
The following is :
$
\left[Pt\left(NH_3\right)_6\right] Cl_4
$
(i) Write the formulas of other six complex compounds.
(ii) Write the IUPAC names of these complex compounds.
(iii) Which of these complex aqueous solutions will have the highest conductivity?
(iv) Which of these complexes is non-ionic?
(v) Oxidation number of Pt in these complexes and also tell the coordination number.
→The following is :
$
\left[Pt\left(NH_3\right)_6\right] Cl_4
$
(i) Write the formulas of other six complex compounds.
(ii) Write the IUPAC names of these complex compounds.
(iii) Which of these complex aqueous solutions will have the highest conductivity?
(iv) Which of these complexes is non-ionic?
(v) Oxidation number of Pt in these complexes and also tell the coordination number.
Nitrogen pentoxide decomposes according to equation: $\text{2N}_{2}\text{O}_{5}\text{(g)}\rightarrow\text{4NO}_{2}\text{(g)}+\text{O}_{2}\text{(g)}.$
This first order reactionwas allowed to proceed at 40° C and the data below were collected:
→This first order reactionwas allowed to proceed at 40° C and the data below were collected:
| [N2O5](M) | Time (min) |
| 0.400 | 0.00 |
| 0.289 | 20.0 |
| 0.209 | 40.0 |
| 0.151 | 60.0 |
| 0.109 | 80.0 |
- Calculate the rate constant. Include units with your answer.
- What will be the concentration of N2O5 after 100 minutes?
- Calculate the initial rate of reaction.
Answer the following question:
An organic compound A having molecular formula C6H6O gives a characteristic colour with aqueous FeCl3 solution. A on treatment with CO2 and NaOH at 400K under pressure gives B which on acidification gives a compound C. The compound C reacts with acetyl chloride to give D which is a popular pain killer. Deduce the structure of A, B, C and D.
An organic compound A having molecular formula C6H6O gives a characteristic colour with aqueous FeCl3 solution. A on treatment with CO2 and NaOH at 400K under pressure gives B which on acidification gives a compound C. The compound C reacts with acetyl chloride to give D which is a popular pain killer. Deduce the structure of A, B, C and D.
H2S, a toxic gas with rotten egg like smell, is used for the qualitative analysis. If the solubility of H2S in water at STP is 0.195 m, calculate Henry’s law constant.
The Fischer projection of D-Glucose is given alongside.
What happens when L-Glucose is treated with Tollens’ reagent?
What happens when L-Glucose is treated with Tollens’ reagent?
Calculate the temperature at which a solution containing 54 g of glucose, C6H12O6, in 250 g of water will freeze. [Kf for water = 1.86 K kg mol–1].
How would you account for the following:
Transition metals sometimes exhibit very low oxidation state such as +1 and 0.
Transition metals sometimes exhibit very low oxidation state such as +1 and 0.
- For the complex [Fe(CN)6]3–, write the hybridization type, magnetic character and spin nature of the complex.
(At. number: Fe=26).
- Draw one of the geometrical isomers of the complex [Pt(en)2Cl2]2+ which is optically active.
Identify the product of the following reaction:
→$ \ \ \ \ \ \ \ \ \ \text{CH}_3\\ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{|}\\\text{CH}_3-\text{C}-\text{CH}_2-\text{Br}\xrightarrow{\stackrel{{}}{\hbox{Na}}\stackrel{{}}{\hbox{OH}}}\\ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{|} \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \Delta\\ \ \ \ \ \ \ \ \ \ \text{CH}_3$