Arrange the compounds in order of decreasing acidity: (1) Cl-C H2-C H2-SH (2) C l2CH-C H2-SH (3) Cl-C H2-C H2-OH (4) C H3-C H2-OH

Question

Arrange the compounds in order of decreasing acidity: (1) Cl-C H2-C H2-SH (2) C l2CH-C H2-SH (3) Cl-C H2-C H2-OH (4) C H3-C H2-OH (A) IV > III > II > I (B) I > II > III > IV (C) I > II > IV > III (D) II > I > III > IV

Tardigrade Admin · Accepted Answer

Thiols are more acidic than the corresponding alcohols as their conjugate base is more stable due to the presence of d-orbitals in sulphur.

Presence of electron withdrawing groups will increase acidity.

Q. Arrange the compounds in order of decreasing acidity :

(1) $Cl - C H_{2} - C H_{2} - S H$

(2) $C l_{2} C H - C H_{2} - S H$

(3) $Cl - C H_{2} - C H_{2} - O H$

(4) $C H_{3} - C H_{2} - O H$

$I V > III > II > I$

$I > II > III > I V$

$I > II > I V > III$

$II > I > III > I V$

Thiols are more acidic than the corresponding alcohols as their conjugate base is more stable due to the presence of d-orbitals in sulphur.

Presence of electron withdrawing groups will increase acidity.

Q. Arrange the compounds in order of decreasing acidity : (1) Cl−CH2​−CH2​−SH (2) Cl2​CH−CH2​−SH (3) Cl−CH2​−CH2​−OH (4) CH3​−CH2​−OH

IV>III>II>I

I>II>III>IV

I>II>IV>III

II>I>III>IV

Thiols are more acidic than the corresponding alcohols as their conjugate base is more stable due to the presence of d-orbitals in sulphur. Presence of electron withdrawing groups will increase acidity.

Q. Arrange the compounds in order of decreasing acidity :

(1) $Cl - C H_{2} - C H_{2} - S H$

(2) $C l_{2} C H - C H_{2} - S H$

(3) $Cl - C H_{2} - C H_{2} - O H$

(4) $C H_{3} - C H_{2} - O H$

$I V > III > II > I$

$I > II > III > I V$

$I > II > I V > III$

$II > I > III > I V$

Thiols are more acidic than the corresponding alcohols as their conjugate base is more stable due to the presence of d-orbitals in sulphur.

Presence of electron withdrawing groups will increase acidity.