Silver halides' colors and ammonia solubilities

Steps:

• Recall colors: AgCl is cream/white, AgBr is pale yellow, AgI is yellow.
• Note solubilities in aqueous ammonia: AgCl dissolves readily forming [Ag(NH3)2]+, AgBr partially, AgI insoluble.
• Identify the cream-colored halide most soluble in ammonia: AgCl.
• Match to choices: cream color pairs with AgCl solubility.

Why A is correct:

• AgCl is cream and highly soluble in ammonia due to stable complex ion formation per coordination chemistry.

Why the others are wrong:

• B: AgI is yellow, not cream.
• C: AgCl is cream, not yellow.
• D: AgI is yellow but insoluble in ammonia.

Final answer: A