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What is generally true about solubility of a solid in a liquid as temperature increases?

For many solids dissolved in liquid water, the solubility increases with temperature. The increase in kinetic energy that comes with higher temperatures allows the solvent molecules to more effectively break apart the solute molecules that are held together by intermolecular attractions.

How does the solubility of solid in liquid vary with temperature and pressure?

The solubility of most substances depends strongly on the temperature and, in the case of gases, on the pressure. The solubility of most solid or liquid solutes increases with increasing temperature. The solubility of a gas decreases with increasing temperature.

How will you distinguish between phenol and benzoic acid?

Note that phenol usually gives violet colouration with the neutral ferric chloride solution and also benzoic acid gives buff coloured that is pale dull yellow coloured precipitate with neutral ferric chloride solution.

Why alcohol does not react with fecl3?

It is because of development of negative charge in electronegative oxygen atom which makes it unstable. So, the reaction is unstable.

Why is sodium hydroxide used to test the solubility of phenol?

You can recognise phenol because: It is fairly insoluble in water. It reacts with sodium hydroxide solution to give a colourless solution (and therefore must be acidic). It does not react with sodium carbonate or hydrogencarbonate solutions (and so must be only very weakly acidic).

What happens when phenol reacts with HCl?

Phenol dissociates to form phenoxide ion. As phenol is a weak acid, the equilibrium lies to the left (phenol remains primarily in undissociated form). In acidic solutions, the equilibrium remains unaffected and phenol remains unaffected. …

How does phenol react with chloroform in presence of NaOH?

Phenol in presence of sodium hydroxide reacts with chloroform to form salicyladehyde. The reaction is known as Reimer-Tiemann reaction.

What happens when phenol reacts with chloroform in presence of aqueous NaOH?

When phenol is treated with chloroform in presence of NaOH at 343 K, salicyaldehyde is formed.