Amines — Chemistry STD 12 Science — Question

Ethers can be prepared by Williamson synthesis in which an alkyl halide is reacted with sodium alkoxide. Di-tert-butyl ether can’t be prepared by this method. Explain.

Arrange the following in decreasing order of their acidic strength and give reason for your answer.
CH₃CH₂OH, CH₃COOH, ClCH₂COOH, FCH₂COOH, C₆H₅CH₂COOH

Explain Pseudo first order reaction with example.

Compound ‘A’ with molecular formula C₄H₉Br is treated with aq. KOH solution. The rate of this reaction depends upon the concentration of the compound ‘A’ only. When another optically active isomer ‘B’ of this compound was treated with aq. KOH solution, the rate of reaction was found to be dependent on concentration of compound and KOH both.

1. Write down the structural formula of both compounds ‘A’ and ‘B’.
2. Out of these two compounds, which one will be converted to the product with inverted configuration.

If the value of rate constants are same for three reactions whose orders are 1,2 , and 3 , then what will be the order of the rates of these reactions if the value of concentration is 1 M , less than 1 M and more than 1 M ?

Explain the difference between reucing and non-reducing sugars with examples.

Explain with chemical reactions, the formation of acyl chlorides from carboxylic acids. ### Write a note on reaction of carboxylic acids with PCI₃ PCl₅ and SOCI₂.

What is meant by tertiary structure of proteins?