See image — GOC and Organic Chemistry Basics Chemistry Question

💡 Solution & Explanation

**Step 1: Identify the compounds and their basicities** - $ClNH_2$ (chloramine): Cl is electronegative, withdraws electron density from N, weakens basicity - $NH_3$ (ammonia): Standard reference base - $CH_3NH_2$ (methylamine): CH₃ is electron-donating, increases electron density on N, enhances basicity **Step 2: Apply inductive effects** - **Electron-withdrawing groups** (like Cl) decrease basicity by destabilizing the lone pair on N - **Electron-donating groups** (like CH₃) increase basicity by stabilizing the lone pair on N **Step 3: Rank basicities** $$ClNH_2 < NH_3 < CH_3NH_2$$ - $ClNH_2$ is **least basic** (Cl withdraws electrons) - $NH_3$ is **intermediate** (no substituent) - $CH_3NH_2$ is **most basic** (CH₃ donates electrons) **Step 4: Verify against option (A)** Option (A) lists: $ClNH_2, NH_3, CH_3NH_2$ ✓ This correctly shows **increasing order of basic strength** from left to right. **Answer: (A)** — The weakest base ($ClNH_2$) is listed first, progressing to the strongest base ($CH_3NH_2$).