Alcohols, Phenols, and Ethers — Chemistry STD 12 Science — Question

Give the examples of chain and position isomerism in carboxylic acids.

Write the chemical equations involved in the following reactions:

1. Hoffmann-bromamide degradation reaction.
2. Carbylamine reaction.

 

Note: In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.

1. Both assertion and reason are true and the reason is the correct explanation of assertion.
2. Both assertion and reason are true and the reason is not the correct explanation of assertion.
3. Assertion is true but the reason is false.
4. Both assertion and reason are false.
5. Assertion is false but reason is true.

Assertion: Λ_m for weak electrolytes shows a sharp increase when the electrolytic solution is diluted.
Reason: For weak electrolytes degree of dissociation increases with dilution of solution.

What is colligative properties? Write colligative properties of solution.

Calculate the mass of compound (molar mass= 256 g mol^-1) to be dissolved in 75 g of benzene to lower its freezing point by 0.48 K (K_f= 5.12 K kg mol^-1).

A first order gas reaction A₂B₂(g) → 2A(g) + 2B(g) at the temperature 400°C has the rate constant K = 2.0 × 10^-4 s^-1 . What percentage of A₂B₂ is decomposed on heating for 900 seconds.

Write common name and IUPAC name of following alcohol compound.

An organic compound with the molecular formula C₉H₁₀O forms 2,4-DNP derivative, reduces Tollens’ reagent and undergoes Cannizzaro reaction. On vigorous oxidation, it gives 1, 2-benzenedicarboxylic acid. Identify the compound.

Discuss the classification of monohydric alcohols containing C_sp²-OH bond.

Write down limitation of Crystal field.