{"id":13200,"date":"2019-02-16T20:58:02","date_gmt":"2019-02-16T20:58:02","guid":{"rendered":"https:\/\/prepistan.com\/blog\/?p=13200"},"modified":"2019-02-16T20:58:02","modified_gmt":"2019-02-16T20:58:02","slug":"chemistry-mcqs-quiz-questions-for-competitive-exams-with-answers-vol-8","status":"publish","type":"post","link":"https:\/\/prepistan.com\/blog\/chemistry-mcqs-quiz-questions-for-competitive-exams-with-answers-vol-8\/","title":{"rendered":"Chemistry MCQ&#8217;s Quiz Questions for Competitive Exams with Answers VOL 8"},"content":{"rendered":"<p>Chemistry MCQ&#8217;s Quiz Questions for NTS, PPSC, CSS, FPSC, PMS, OTS, PTS Tests and Interviews. MCQs are taken from Caravan Comprehensive book. These Multiple Choice Questions of Chemistry are posted here for preparation of Job tests and Entry tests like MCAT and ECAT etc.<\/p>\n<p><strong>1. Permanent hardness of water can be removed by adding_______?<\/strong><\/p>\n<p>(a) Potassium permanganate<br \/>\n(b) Chlorine<br \/>\n(c) Bleaching powder<br \/>\n<span style=\"color: #ff0000;\">(d) Washing soda<\/span><\/p>\n<p><strong>2. The first synthetic fiber made by man was____?<\/strong><\/p>\n<p>(a) Rayon<br \/>\n<span style=\"color: #ff0000;\">(b) Nylon<\/span><br \/>\n(c) Polyester<br \/>\n(d) Terrycott<\/p>\n<p><strong>3. Gypsum is added to cement clinker to______?<\/strong><\/p>\n<p>(a) Increase the tensile strength of cement<br \/>\n(b) Bind the particles of calcium silicate<br \/>\n<span style=\"color: #ff0000;\">(c) Decrease the rate of setting of cement<\/span><br \/>\n(d) Facilitate the formation of colloidal gel<\/p>\n<p><strong>4. Production of chlorofluorocarbons (CFC) gas is used in which of the following domestic products?<\/strong><\/p>\n<p>(a) Television<br \/>\n(b) Tube-light<br \/>\n(c) Cooking gas<br \/>\n<span style=\"color: #ff0000;\">(d) Refrigerator<\/span><\/p>\n<p><strong>5. In fireworks, the green flame is produced because of __________?<\/strong><\/p>\n<p>(a) Mercury<br \/>\n(b) Sodium<br \/>\n(c) Potassium<br \/>\n<span style=\"color: #ff0000;\">(d) Barium<\/span><\/p>\n<p><strong>6. Mixture of two metals is called_______?<\/strong><\/p>\n<p>(a) Dispersion<br \/>\n<span style=\"color: #ff0000;\">(b) Alloy<\/span><br \/>\n(c) Mouse<br \/>\n(d) Hard Drive<\/p>\n<p><strong>7. Dynamite was discovered by______?<\/strong><\/p>\n<p>(a) Daimler<br \/>\n(b) Mosely<br \/>\n<span style=\"color: #ff0000;\">(c) Alfred Nobel<\/span><br \/>\n(d) Freud<\/p>\n<p><strong>8. What is the chemical combination of laughing gas?<\/strong><\/p>\n<p>(a) Helium and Nitrogen<br \/>\n(b) Nitrogen and Hydrogen<br \/>\n<span style=\"color: #ff0000;\">(c) Nitrogen and Oxygen<\/span><br \/>\n(d) Hydrogen and Oxygen<\/p>\n<p><strong>9. Which of the following is the highest element of the periodic table?<\/strong><\/p>\n<p>(a) Nitrogen<br \/>\n(b) Carbon dioxide<br \/>\n<span style=\"color: #ff0000;\">(c) Hydrogen<\/span><br \/>\n(d) Oxygen<\/p>\n<p><strong>10. Mixing of which material makes rubber more flexible?<\/strong><\/p>\n<p>(a) Graphite<br \/>\n(b) Marble powder<br \/>\n<span style=\"color: #ff0000;\">(c) Sulphur<\/span><br \/>\n(d) Potassium permanganate<\/p>\n<p><strong>11. Which is the smallest unit of protein?<\/strong><\/p>\n<p>(a) Fatty acid<br \/>\n(b) Glycerol<br \/>\n<span style=\"color: #ff0000;\">(c) Amino Acid<\/span><br \/>\n(d) Calcium<\/p>\n<p><strong>12. When heavy and unstable elements split into relatively smaller elements with the release of energy the process is called ______?<\/strong><\/p>\n<p><span style=\"color: #ff0000;\">(a) Fission<\/span><br \/>\n(b) Fusion<br \/>\n(c) Diffusion<br \/>\n(d) Infusion<\/p>\n<p><strong>13. Name the acid which is common to all acids?<\/strong><\/p>\n<p>(a) Oxalic<br \/>\n<span style=\"color: #ff0000;\">(b) Hydrogen<\/span><br \/>\n(c) Carbolic<br \/>\n(d) Sulphuric<\/p>\n<p><strong>14. What is laughing gas called?<\/strong><\/p>\n<p>(a) Ferrous chloride<br \/>\n(b) Sulphur dioxide<br \/>\n(c) Ferric hydroxide<br \/>\n<span style=\"color: #ff0000;\">(d) Nitrous Oxide<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Chemistry MCQ&#8217;s Quiz Questions for NTS, PPSC, CSS, FPSC, PMS, OTS, PTS Tests and Interviews. MCQs are taken from Caravan Comprehensive book. These Multiple Choice Questions of Chemistry are posted here for preparation of Job tests and Entry tests like MCAT and ECAT etc. 1. Permanent hardness of water can be removed by adding_______? (a) [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[258],"tags":[],"class_list":{"0":"post-13200","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-chemistry-mcqs"},"_links":{"self":[{"href":"https:\/\/prepistan.com\/blog\/wp-json\/wp\/v2\/posts\/13200","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prepistan.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prepistan.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prepistan.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prepistan.com\/blog\/wp-json\/wp\/v2\/comments?post=13200"}],"version-history":[{"count":0,"href":"https:\/\/prepistan.com\/blog\/wp-json\/wp\/v2\/posts\/13200\/revisions"}],"wp:attachment":[{"href":"https:\/\/prepistan.com\/blog\/wp-json\/wp\/v2\/media?parent=13200"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prepistan.com\/blog\/wp-json\/wp\/v2\/categories?post=13200"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prepistan.com\/blog\/wp-json\/wp\/v2\/tags?post=13200"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}