{"id":5208,"date":"2024-04-15T02:09:41","date_gmt":"2024-04-15T02:09:41","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=5208"},"modified":"2024-04-15T02:09:41","modified_gmt":"2024-04-15T02:09:41","slug":"the-molecular-mass-of-o2-is-a-32-b-64-c-8-d-16","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-molecular-mass-of-o2-is-a-32-b-64-c-8-d-16\/","title":{"rendered":"The molecular mass of O2 is . . . . . . . . A. 32 B. 64 C. 8 D. 16"},"content":{"rendered":"<p>[amp_mcq option1=&#8221;32&#8243; option2=&#8221;64&#8243; option3=&#8221;8&#8243; option4=&#8221;16&#8243; correct=&#8221;option1&#8243;]<!--more--><\/p>\n<p>The correct answer is A. 32.<\/p>\n<p>The molecular mass of a substance is the mass of one molecule of that substance. It is calculated by adding the atomic masses of the atoms in the molecule. The atomic mass of oxygen is 16, so the molecular mass of oxygen gas (O2) is 16 + 16 = 32.<\/p>\n<p>Option B is incorrect because 64 is twice the molecular mass of oxygen gas.<\/p>\n<p>Option C is incorrect because 8 is half the molecular mass of oxygen gas.<\/p>\n<p>Option D is incorrect because 16 is the atomic mass of oxygen, not the molecular mass of oxygen gas.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[amp_mcq option1=&#8221;32&#8243; option2=&#8221;64&#8243; option3=&#8221;8&#8243; option4=&#8221;16&#8243; correct=&#8221;option1&#8243;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[636],"tags":[],"class_list":["post-5208","post","type-post","status-publish","format-standard","hentry","category-non-metal-and-its-compounds","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>The molecular mass of O2 is . . . . . . . . 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