{"id":23529,"date":"2024-04-15T06:34:52","date_gmt":"2024-04-15T06:34:52","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=23529"},"modified":"2024-04-15T06:34:52","modified_gmt":"2024-04-15T06:34:52","slug":"substance-used-as-an-anti-freeze-in-radiators-of-automobiles-is-a-methyl-alcohol-and-h2o-b-methyl-alcohol-c-ethyl-alcohol-d-ethyl-alcohol-and-h2o-2","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/substance-used-as-an-anti-freeze-in-radiators-of-automobiles-is-a-methyl-alcohol-and-h2o-b-methyl-alcohol-c-ethyl-alcohol-d-ethyl-alcohol-and-h2o-2\/","title":{"rendered":"Substance used as an anti freeze in radiators of automobiles is : A. Methyl alcohol and H2O B. Methyl alcohol C. Ethyl alcohol D. Ethyl alcohol and H2O"},"content":{"rendered":"<p>\r\n    <!-- Check if it's an AMP page -->\r\n            <!-- Non-AMP version -->\r\n        <div class=\"mcq-container\" data-quiz-id=\"quizState_6aa92040d34e1\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"false\">\r\n                    Methyl alcohol and H2O                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    Methyl alcohol                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"false\">\r\n                    Ethyl alcohol                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"true\">\r\n                    Ethyl alcohol and H2O                <\/div>\r\n                            \r\n            <!-- Feedback messages for non-AMP -->\r\n            <div class=\"feedback\" data-feedback=\"wrong\">Answer is Right!<\/div>\r\n            <div class=\"feedback\" data-feedback=\"right\">Answer is Wrong!<\/div>\r\n        <\/div>\r\n\r\n        <script>\r\n        document.addEventListener('DOMContentLoaded', function () {\r\n            var containers = document.querySelectorAll('.mcq-container');\r\n\r\n            containers.forEach(function(container) {\r\n                var options = container.querySelectorAll('.option');\r\n                var feedbackSelect = container.querySelector('[data-feedback=\"select\"]');\r\n                var feedbackWrong = container.querySelector('[data-feedback=\"wrong\"]');\r\n                var feedbackRight = container.querySelector('[data-feedback=\"right\"]');\r\n\r\n                options.forEach(function(option) {\r\n                    option.addEventListener('click', function() {\r\n                        var selectedOption = option.getAttribute('data-option-key');\r\n                        var isCorrect = option.getAttribute('data-is-correct') === 'true';\r\n\r\n                        \/\/ Remove previous selections\r\n                        options.forEach(function(opt) {\r\n                            opt.classList.remove('correct', 'incorrect');\r\n                        });\r\n\r\n                        \/\/ Add the correct\/incorrect class\r\n                        if (isCorrect) {\r\n                            option.classList.add('correct');\r\n                            feedbackRight.hidden = false;\r\n                            feedbackWrong.hidden = true;\r\n                        } else {\r\n                            option.classList.add('incorrect');\r\n                            feedbackRight.hidden = true;\r\n                            feedbackWrong.hidden = false;\r\n                        }\r\n\r\n                        \/\/ Hide select feedback\r\n                        feedbackSelect.hidden = true;\r\n                    });\r\n                });\r\n            });\r\n        });\r\n        <\/script>\r\n    \r\n    <!--more--><\/p>\n<p>The correct answer is: <strong>D. Ethyl alcohol and H2O<\/strong><\/p>\n<p>Ethyl alcohol (ethanol) is a common substance used as an antifreeze in radiators of automobiles. It is a colorless, flammable liquid that is miscible with water. Ethanol has a lower freezing point than water, so it helps to keep the radiator fluid from freezing in cold weather. It also has a higher boiling point than water, so it helps to keep the radiator fluid from boiling in hot weather.<\/p>\n<p>Methyl alcohol (methanol) is another substance that is sometimes used as an antifreeze. However, methanol is toxic and can be fatal if ingested. It is also more flammable than ethanol. For these reasons, ethanol is the preferred antifreeze for most applications.<\/p>\n<p>Water is also a common substance used in antifreeze. It is a colorless, odorless, tasteless liquid that is essential for life. Water has a high boiling point and <div class=\"telegram-channel-container\">\r\n        <a href=\"https:\/\/t.me\/pscnotes2025\" target=\"_blank\" class=\"telegram-channel-button\">\r\n            <span class=\"telegram-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 496 512\">\r\n                    <path fill=\"white\" d=\"M248,8C111,8,0,119,0,256s111,248,248,248s248-111,248-248S385,8,248,8z M362,177L320,367c-3,14-10,18-20,14l-56-41l-27,26 c-3,3-5,5-10,5l4-63L323,196c5-5-1-7-8-3l-98,62l-42-13c-9-3-10-9,2-14l162-63C351,160,365,164,362,177z\"\/>\r\n                <\/svg>\r\n            <\/span>\r\n            Join Our Telegram Channel\r\n        <\/a>\r\n    <\/div> a high heat capacity, which makes it ideal for use in antifreeze. It also helps to lubricate the engine and prevent corrosion.<\/p>\n<p>The combination of ethanol and water is the most effective antifreeze for most applications. Ethanol lowers the freezing point <div class=\"youtube-subscribe-container\">\r\n        <a href=\"https:\/\/www.youtube.com\/channel\/UCNHT8lW-JmLC68rjBfZhdkg?sub_confirmation=1\" target=\"_blank\" class=\"youtube-subscribe-button\">\r\n            <span class=\"youtube-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 576 512\">\r\n                    <path d=\"M549.7 124.1c-6.3-23.7-24.8-42.3-48.3-48.6C458.8 64 288 64 288 64S117.2 64 74.6 75.5c-23.5 6.3-42 24.9-48.3 48.6-11.4 42.9-11.4 132.3-11.4 132.3s0 89.4 11.4 132.3c6.3 23.7 24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z\"\/>\r\n                <\/svg>\r\n            <\/span>\r\n            Subscribe on YouTube\r\n        <\/a>\r\n    <\/div> of the mixture, while water raises the boiling point. This helps to keep the radiator fluid from freezing in cold weather and boiling in hot weather. The mixture is also non-toxic and non-flammable.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Subscribe on YouTube<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[],"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>Substance used as an anti freeze in radiators of automobiles is : A. Methyl alcohol and H2O B. Methyl alcohol C. Ethyl alcohol D. 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