Which is the correct order of acid strength from the following?
To determine the correct order of acid strength among phenol (C_6H_5OH), water (H_2O), and alcohols (ROH), we must consider their ability to donate a proton (H+), which is indicative of acid strength.
Phenol (C_6H_5OH): Phenol is a weak acid but stronger than both water and alcohols. The phenoxide ion, formed after donating a proton, is stabilized by resonance with the benzene ring.
Water (H_2O): Water is less acidic than phenol but more acidic than alcohols. The hydroxide ion formed is stable but lacks resonance stabilization found in phenoxide.
Alcohols (ROH): Alcohols are the weakest acids because the alkoxide ion formed after losing a proton is not stabilized by resonance or significant electronegativity effects.
Order of Acid Strength: The acid strength order based on their ability to donate protons and stabilization of resulting ions is:
C_6H_5OH > H_2O > ROH
This order is due to the resonance stabilization of the phenoxide ion, moderate stability of hydroxide ion, and the lack of stabilization in the alkoxide ion.
Amides are less basic than amines.
Why phenol does not undergo protonation readily?
Rupal, Shanu and Trisha were partners in a firm sharing profits and losses in the ratio of 4:3:1. Their Balance Sheet as at 31st March, 2024 was as follows:
(i) Trisha's share of profit was entirely taken by Shanu.
(ii) Fixed assets were found to be undervalued by Rs 2,40,000.
(iii) Stock was revalued at Rs 2,00,000.
(iv) Goodwill of the firm was valued at Rs 8,00,000 on Trisha's retirement.
(v) The total capital of the new firm was fixed at Rs 16,00,000 which was adjusted according to the new profit sharing ratio of the partners. For this necessary cash was paid off or brought in by the partners as the case may be.
Prepare Revaluation Account and Partners' Capital Accounts.