(4) Zinc is correct answer. Others don't react at room temperature with HCl because their reactivity (capability to react) is quite low.
(4) zinc.................
Zinc is the only element among the given options that reacts spontaneously with 1.0M HCl at room temperature, as indicated by the activity series of metals. Copper, silver, and gold do not react with dilute acids due to their placement below hydrogen in the series. Therefore, the correct answer is D. Zinc.
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My High School Experience(Pengalaman SMA ku)English:When I was in high school, I joined the school’s English Club. Every Friday afternoon, we had meetings where we practiced speaking English, played games, and sometimes watched movies. I also joined a speech competition and won second place. It was one of the best moments of my life. I learned a lot, made new friends, and improved my confidence.Indonesian (Terjemahan):Waktu saya SMA, saya ikut Klub Bahasa Inggris di sekolah. Setiap Jumat sore, kami mengadakan pertemuan untuk berlatih berbicara bahasa Inggris, bermain game, dan kadang-kadang menonton film. Saya juga ikut lomba pidato dan mendapat juara dua. Itu adalah salah satu momen terbaik dalam hidup saya. Saya belajar banyak, mendapat teman baru, dan meningkatkan rasa percaya diri saya.