Question
Explain the preparation of ketones from nitriles.
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Answer
→ Treating a nitrile with Grignard reagent followed by hydrolysis yields a ketone.
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Give the structures of A, B and C in the following reaction:$\text{C}_6\text{H}_5\text{N}_2\text{Cl}\xrightarrow[]{\text{CuCN}}\text{A}\xrightarrow[]{\text{H}_2\text{O}/\text{H}^+}\text{B}\xrightarrow[\Delta]{\text{NH}_3}\text{C}$
→Explain the preparation of carboxylic acid from nitriles and amides with necessary equations.
An organic compound with the molecular formula $\ce{C_9H_{10}O}$ forms $2,4-\ce{DNP}$ derivative, reduces Tollens’ reagent and undergoes Cannizzaro reaction. On vigorous oxidation, it gives $1, 2-$ benzenedicarboxylic acid. Identify the compound.
→Why do gases always tend to be less soluble in liquids as the temperature is raised?
A first order reaction has a rate constant of $0.0051\ min^{–1}$. If we begin with $0.10 M$ concentration of the reactant, what concentration of reactant will remain in solution after $3$ hours?
→Find the oxidation number of Cu in the complex ion: $[Cu(NH_{3})_{4}]^{2+}$
→Answer the following questions:
Illustrate the following reactions:
Illustrate the following reactions:
- Hoffmann bromamide degradation reaction.
- Coupling reaction.
Answer the following:
$(a)$ The rate of a reaction is given by rate $= k [N_2O_5].$ In this equation what does $k$ stand for?
$(b)$ Is it possible to determine or predict the rate law theoretically by merely looking at the equation?
→$(a)$ The rate of a reaction is given by rate $= k [N_2O_5].$ In this equation what does $k$ stand for?
$(b)$ Is it possible to determine or predict the rate law theoretically by merely looking at the equation?
What is retention explain with example.
Given alongside is the sketch of a plant for carrying out a process.
- Name the process occurring in the given plant.
- To which container does the net flow of solvent take place?
- Name one SPM which can be used in this plant.
- Give one practical use of the plant.
