निम्नलिखित में से कौन सी धातु हवा में खुला रखने पर आग पकड़ लेती है और तेजी से जलती है?

Temple bells are made of specific metal alloys mainly because of which property?

Metals that produce a ringing sound when struck on a hard surface are said to be:

Among the given options, which metal is placed highest in the reactivity series?