3. Statement 3: NCl₃ on hydrolysis gives HOCl, but BCl₃ gives HCl. - Evaluation: This statement is true. NCl₃ produces HOCl, and BCl₃ produces HCl. 4. Statement 4: Both NCl₃ and BCl₃ on hydrolysis give HOCl. - Evaluation: This statement is false. Only NCl₃ produces...