{"version":"1.0","provider_name":"OnlineExamMaker Blog","provider_url":"https:\/\/onlineexammaker.com\/kb","author_name":"Rebecca","author_url":"https:\/\/onlineexammaker.com\/kb\/author\/rebeccaoem\/","title":"20 Copper Quiz Questions and Answers - OnlineExamMaker Blog","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"NNWa94p3ls\"><a href=\"https:\/\/onlineexammaker.com\/kb\/20-copper-quiz-questions-and-answers\/\">20 Copper Quiz Questions and Answers<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/onlineexammaker.com\/kb\/20-copper-quiz-questions-and-answers\/embed\/#?secret=NNWa94p3ls\" width=\"600\" height=\"338\" title=\"&#8220;20 Copper Quiz Questions and Answers&#8221; &#8212; OnlineExamMaker Blog\" data-secret=\"NNWa94p3ls\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/* ]]> *\/\n<\/script>\n","thumbnail_url":"https:\/\/onlineexammaker.com\/kb\/wp-content\/uploads\/2025\/12\/2074-Copper-quiz.webp","thumbnail_width":600,"thumbnail_height":406,"description":"Copper is a chemical element with the symbol Cu and atomic number 29. It is a reddish-orange metal known for its excellent electrical and thermal conductivity, ductility, and resistance to corrosion. As one of the most widely used metals in human history, copper has been valued since ancient times for its malleability and antimicrobial properties. [&hellip;]"}