{"id":3898,"date":"2025-11-19T07:44:56","date_gmt":"2025-11-19T07:44:56","guid":{"rendered":"https:\/\/physicscatalyst.com\/testprep\/class-7-science\/the-world-of-metals-4-and-non-metals-class-7-mcq\/"},"modified":"2025-11-19T07:47:10","modified_gmt":"2025-11-19T07:47:10","slug":"the-world-of-metals-4-and-non-metals-class-7-mcq","status":"publish","type":"post","link":"https:\/\/physicscatalyst.com\/testprep\/class-7-science\/the-world-of-metals-4-and-non-metals-class-7-mcq\/","title":{"rendered":"The World of Metals and Non-metals Class 7 MCQ"},"content":{"rendered":"<script type=\"text\/javascript\" >\ndocument.addEventListener(\"DOMContentLoaded\", function(event) { \nif(!window.jQuery) alert(\"The important jQuery library is not properly loaded in your site. Your WordPress theme is probably missing the essential wp_head() call. You can switch to another theme and you will see that the plugin works fine and this notice disappears. If you are still not sure what to do you can contact us for help.\");\n});\n<\/script>  \n  \n<div  id=\"watupro_quiz\" class=\"quiz-area single-page-quiz\">\n<p id=\"submittingExam489\" style=\"display:none;text-align:center;\">Please wait...<br><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/physicscatalyst.com\/testprep\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\"><\/p>\n\n<div class=\"watupro-exam-description\" id=\"description-quiz-489\"><p><strong>General Instructions<\/strong><\/p>\n<ul>\n<li>Your test contains multiple-choice questions with only one answer-type question. There are a total of 10 questions<\/li>\n<li>This is a 20 min test. Please make sure you complete it in the stipulated time<\/li>\n<li>You can finish this test any time using the <span style=\"color: #ff0000;\"><strong>'Submit'<\/strong><\/span> button.<\/li>\n<\/ul>\n<\/div>\n\n<form action=\"\" method=\"post\" class=\"quiz-form\" id=\"quiz-489\"  enctype=\"multipart\/form-data\" >\n<div class='watu-question ' id='question-1' style=';'><div id='questionWrap-1'  class='   watupro-question-id-8311'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>1. <\/span>which is not the constituent of steel?<\/div><input type='hidden' name='question_id[]' id='qID_1' value='8311' class='watupro-question-id'\/><input type='hidden' id='answerType8311' class='answerTypeCnt1' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8311'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8311[]' id='answer-id-33194' class='answer   answerof-8311  ' value='33194'   \/><label for='answer-id-33194' id='answer-label-33194' class=' answer'><span>Iron<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8311[]' id='answer-id-33195' class='answer   answerof-8311  ' value='33195'   \/><label for='answer-id-33195' id='answer-label-33195' class=' answer'><span>Carbon<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8311[]' id='answer-id-33196' class='answer   answerof-8311  ' value='33196'   \/><label for='answer-id-33196' id='answer-label-33196' class=' answer'><span>Zinc<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8311[]' id='answer-id-33197' class='answer   answerof-8311  ' value='33197'   \/><label for='answer-id-33197' id='answer-label-33197' class=' answer'><span>None of the above<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-2' style=';'><div id='questionWrap-2'  class='   watupro-question-id-8312'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>2. <\/span>which is of these is a noble metal?<\/div><input type='hidden' name='question_id[]' id='qID_2' value='8312' class='watupro-question-id'\/><input type='hidden' id='answerType8312' class='answerTypeCnt2' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8312'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8312[]' id='answer-id-33198' class='answer   answerof-8312  ' value='33198'   \/><label for='answer-id-33198' id='answer-label-33198' class=' answer'><span>Gold<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8312[]' id='answer-id-33199' class='answer   answerof-8312  ' value='33199'   \/><label for='answer-id-33199' id='answer-label-33199' class=' answer'><span>Iron<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8312[]' id='answer-id-33200' class='answer   answerof-8312  ' value='33200'   \/><label for='answer-id-33200' id='answer-label-33200' class=' answer'><span>Zinc<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8312[]' id='answer-id-33201' class='answer   answerof-8312  ' value='33201'   \/><label for='answer-id-33201' id='answer-label-33201' class=' answer'><span>None of the above<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-3' style=';'><div id='questionWrap-3'  class='   watupro-question-id-8313'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>3. <\/span>Non-metals react with oxygen to form _____ oxides<\/div><input type='hidden' name='question_id[]' id='qID_3' value='8313' class='watupro-question-id'\/><input type='hidden' id='answerType8313' class='answerTypeCnt3' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8313'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8313[]' id='answer-id-33202' class='answer   answerof-8313  ' value='33202'   \/><label for='answer-id-33202' id='answer-label-33202' class=' answer'><span>Basic or neutral\r\n<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8313[]' id='answer-id-33203' class='answer   answerof-8313  ' value='33203'   \/><label for='answer-id-33203' id='answer-label-33203' class=' answer'><span>Acidic or neutral<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8313[]' id='answer-id-33204' class='answer   answerof-8313  ' value='33204'   \/><label for='answer-id-33204' id='answer-label-33204' class=' answer'><span>Amphoteric\r\n<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8313[]' id='answer-id-33205' class='answer   answerof-8313  ' value='33205'   \/><label for='answer-id-33205' id='answer-label-33205' class=' answer'><span>None of these\r\n<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-4' style=';'><div id='questionWrap-4'  class='   watupro-question-id-8314'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>4. <\/span>Which of the following is false<\/div><input type='hidden' name='question_id[]' id='qID_4' value='8314' class='watupro-question-id'\/><input type='hidden' id='answerType8314' class='answerTypeCnt4' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8314'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8314[]' id='answer-id-33206' class='answer   answerof-8314  ' value='33206'   \/><label for='answer-id-33206' id='answer-label-33206' class=' answer'><span>Chlorine is used for disinfecting drinking water.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8314[]' id='answer-id-33207' class='answer   answerof-8314  ' value='33207'   \/><label for='answer-id-33207' id='answer-label-33207' class=' answer'><span>Sulphur is used for making crackers<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8314[]' id='answer-id-33208' class='answer   answerof-8314  ' value='33208'   \/><label for='answer-id-33208' id='answer-label-33208' class=' answer'><span>Zinc is used for galvanising iron to protect iron from rusting.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8314[]' id='answer-id-33209' class='answer   answerof-8314  ' value='33209'   \/><label for='answer-id-33209' id='answer-label-33209' class=' answer'><span>None of these<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-5' style=';'><div id='questionWrap-5'  class='   watupro-question-id-8315'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>5. <\/span>The substance that will be flattened on beating with a hammer is<\/div><input type='hidden' name='question_id[]' id='qID_5' value='8315' class='watupro-question-id'\/><input type='hidden' id='answerType8315' class='answerTypeCnt5' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8315'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8315[]' id='answer-id-33210' class='answer   answerof-8315  ' value='33210'   \/><label for='answer-id-33210' id='answer-label-33210' class=' answer'><span>crystal of iodine<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8315[]' id='answer-id-33211' class='answer   answerof-8315  ' value='33211'   \/><label for='answer-id-33211' id='answer-label-33211' class=' answer'><span>lump of sulphur<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8315[]' id='answer-id-33212' class='answer   answerof-8315  ' value='33212'   \/><label for='answer-id-33212' id='answer-label-33212' class=' answer'><span>piece of coal<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8315[]' id='answer-id-33213' class='answer   answerof-8315  ' value='33213'   \/><label for='answer-id-33213' id='answer-label-33213' class=' answer'><span>zinc granule<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-6' style=';'><div id='questionWrap-6'  class='   watupro-question-id-8316'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>6. <\/span>Match the column<br \/>\r\n<br \/>\r\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3896\" src=\"https:\/\/physicscatalyst.com\/testprep\/wp-content\/uploads\/2025\/11\/metal-and-non-metals-1.png\" alt=\"\" width=\"790\" height=\"135\" srcset=\"https:\/\/physicscatalyst.com\/testprep\/wp-content\/uploads\/2025\/11\/metal-and-non-metals-1.png 790w, https:\/\/physicscatalyst.com\/testprep\/wp-content\/uploads\/2025\/11\/metal-and-non-metals-1-300x51.png 300w, https:\/\/physicscatalyst.com\/testprep\/wp-content\/uploads\/2025\/11\/metal-and-non-metals-1-768x131.png 768w\" sizes=\"auto, (max-width: 790px) 100vw, 790px\" \/><\/div><input type='hidden' name='question_id[]' id='qID_6' value='8316' class='watupro-question-id'\/><input type='hidden' id='answerType8316' class='answerTypeCnt6' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8316'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8316[]' id='answer-id-33214' class='answer   answerof-8316  ' value='33214'   \/><label for='answer-id-33214' id='answer-label-33214' class=' answer'><span>p -> ii, q -> i, r -> ii , s ->i<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8316[]' id='answer-id-33215' class='answer   answerof-8316  ' value='33215'   \/><label for='answer-id-33215' id='answer-label-33215' class=' answer'><span>p -> i, q -> ii, r -> i , s ->ii<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8316[]' id='answer-id-33216' class='answer   answerof-8316  ' value='33216'   \/><label for='answer-id-33216' id='answer-label-33216' class=' answer'><span>p -> i, q -> i, r -> ii , s ->ii<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8316[]' id='answer-id-33217' class='answer   answerof-8316  ' value='33217'   \/><label for='answer-id-33217' id='answer-label-33217' class=' answer'><span>p -> ii, q -> ii, r -> i , s ->i<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-7' style=';'><div id='questionWrap-7'  class='   watupro-question-id-8317'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>7. <\/span>Match the column<br \/>\r\n<br \/>\r\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3897\" src=\"https:\/\/physicscatalyst.com\/testprep\/wp-content\/uploads\/2025\/11\/metal-and-non-metals-2.png\" alt=\"\" width=\"808\" height=\"202\" srcset=\"https:\/\/physicscatalyst.com\/testprep\/wp-content\/uploads\/2025\/11\/metal-and-non-metals-2.png 808w, https:\/\/physicscatalyst.com\/testprep\/wp-content\/uploads\/2025\/11\/metal-and-non-metals-2-300x75.png 300w, https:\/\/physicscatalyst.com\/testprep\/wp-content\/uploads\/2025\/11\/metal-and-non-metals-2-768x192.png 768w\" sizes=\"auto, (max-width: 808px) 100vw, 808px\" \/><\/div><input type='hidden' name='question_id[]' id='qID_7' value='8317' class='watupro-question-id'\/><input type='hidden' id='answerType8317' class='answerTypeCnt7' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8317'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8317[]' id='answer-id-33218' class='answer   answerof-8317  ' value='33218'   \/><label for='answer-id-33218' id='answer-label-33218' class=' answer'><span>p -> iii, q -> iv, r -> i , s ->ii<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8317[]' id='answer-id-33219' class='answer   answerof-8317  ' value='33219'   \/><label for='answer-id-33219' id='answer-label-33219' class=' answer'><span>p -> i, q -> ii, r -> iv, s ->iii<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8317[]' id='answer-id-33220' class='answer   answerof-8317  ' value='33220'   \/><label for='answer-id-33220' id='answer-label-33220' class=' answer'><span>p -> iii, q -> i, r -> ii , s ->iv<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8317[]' id='answer-id-33221' class='answer   answerof-8317  ' value='33221'   \/><label for='answer-id-33221' id='answer-label-33221' class=' answer'><span>p -> iii, q -> iv, r -> ii , s ->icorrect<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-8' style=';'><div id='questionWrap-8'  class='   watupro-question-id-8318'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>8. <\/span>The metal which is stored in Kerosene<\/div><input type='hidden' name='question_id[]' id='qID_8' value='8318' class='watupro-question-id'\/><input type='hidden' id='answerType8318' class='answerTypeCnt8' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8318'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8318[]' id='answer-id-33222' class='answer   answerof-8318  ' value='33222'   \/><label for='answer-id-33222' id='answer-label-33222' class=' answer'><span>Magnesium<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8318[]' id='answer-id-33223' class='answer   answerof-8318  ' value='33223'   \/><label for='answer-id-33223' id='answer-label-33223' class=' answer'><span>Sodium<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8318[]' id='answer-id-33224' class='answer   answerof-8318  ' value='33224'   \/><label for='answer-id-33224' id='answer-label-33224' class=' answer'><span>zinc<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8318[]' id='answer-id-33225' class='answer   answerof-8318  ' value='33225'   \/><label for='answer-id-33225' id='answer-label-33225' class=' answer'><span>Cooper<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-9' style=';'><div id='questionWrap-9'  class='   watupro-question-id-8319'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>9. <\/span>Process of coating metals with zinc is called_______<\/div><input type='hidden' name='question_id[]' id='qID_9' value='8319' class='watupro-question-id'\/><input type='hidden' id='answerType8319' class='answerTypeCnt9' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8319'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8319[]' id='answer-id-33226' class='answer   answerof-8319  ' value='33226'   \/><label for='answer-id-33226' id='answer-label-33226' class=' answer'><span>galvanisation<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8319[]' id='answer-id-33227' class='answer   answerof-8319  ' value='33227'   \/><label for='answer-id-33227' id='answer-label-33227' class=' answer'><span>corrosion<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8319[]' id='answer-id-33228' class='answer   answerof-8319  ' value='33228'   \/><label for='answer-id-33228' id='answer-label-33228' class=' answer'><span>rusting<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8319[]' id='answer-id-33229' class='answer   answerof-8319  ' value='33229'   \/><label for='answer-id-33229' id='answer-label-33229' class=' answer'><span>none of the above<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-10' style=';'><div id='questionWrap-10'  class='   watupro-question-id-8320'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>10. <\/span>Metal objects get damaged when exposed to moist air, and the process is known as _______________<\/div><input type='hidden' name='question_id[]' id='qID_10' value='8320' class='watupro-question-id'\/><input type='hidden' id='answerType8320' class='answerTypeCnt10' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8320'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8320[]' id='answer-id-33230' class='answer   answerof-8320  ' value='33230'   \/><label for='answer-id-33230' id='answer-label-33230' class=' answer'><span>rusting<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8320[]' id='answer-id-33231' class='answer   answerof-8320  ' value='33231'   \/><label for='answer-id-33231' id='answer-label-33231' class=' answer'><span>corrosion<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8320[]' id='answer-id-33232' class='answer   answerof-8320  ' value='33232'   \/><label for='answer-id-33232' id='answer-label-33232' class=' answer'><span>refinement<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8320[]' id='answer-id-33233' class='answer   answerof-8320  ' value='33233'   \/><label 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