{"id":89079,"date":"2025-06-01T07:28:58","date_gmt":"2025-06-01T07:28:58","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=89079"},"modified":"2025-06-01T07:28:58","modified_gmt":"2025-06-01T07:28:58","slug":"which-one-of-the-following-is-correct-6","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-correct-6\/","title":{"rendered":"Which one of the following is correct ?"},"content":{"rendered":"

Which one of the following is correct ?<\/p>\n

[amp_mcq option1=”Pyroxene is commonly found in meteorites” option2=”Amphiboles form about 20% of the Earth’s crust” option3=”Quartz is soluble in water” option4=”The word ‘sedimentary’ is derived from the Latin word kelimentum” correct=”option1″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC NDA-2 – 2024<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe statement that Pyroxene is commonly found in meteorites is correct. The other statements are incorrect.
\n<\/section>\n
\n– Pyroxenes are a group of important rock-forming silicate minerals found in many igneous and metamorphic rocks. They are also abundant minerals in stony meteorites, particularly in chondrites and achondrites like basalts and dunites originating from asteroids.
\n– Amphiboles are also common rock-forming silicate minerals, but they constitute a smaller percentage of the Earth’s crust compared to feldspars and quartz. Their abundance is estimated to be around 5-7% of the continental crust.
\n– Quartz (silicon dioxide, SiO2) is highly insoluble in ordinary water under surface conditions, which contributes to its resistance to chemical weathering. It can be dissolved under extreme conditions (e.g., high temperature and pressure, or presence of specific chemicals), but not in typical rainwater or groundwater.
\n– The word ‘sedimentary’ is derived from the Latin word ‘sedimentum’, which means “a settling” or “a depositing”.
\n<\/section>\n
\nFeldspars are the most abundant mineral group in the Earth’s crust, making up over 50% by weight. Quartz is the second most abundant mineral in the continental crust. The study of minerals found in meteorites provides valuable insights into the composition and formation of the early solar system and other planetary bodies.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following is correct ? [amp_mcq option1=”Pyroxene is commonly found in meteorites” option2=”Amphiboles form about 20% of the Earth’s crust” option3=”Quartz is soluble in water” option4=”The word ‘sedimentary’ is derived from the Latin word kelimentum” correct=”option1″] This question was previously asked in UPSC NDA-2 – 2024 Download PDFAttempt Online The statement that … <\/p>\n

Detailed SolutionWhich one of the following is correct ?<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1094],"tags":[1103,1144,1106],"class_list":["post-89079","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-2","tag-1103","tag-rocks-and-earth-sciences","tag-world-and-physical-geography","no-featured-image-padding"],"yoast_head":"\nWhich one of the following is correct ?<\/title>\n<meta name=\"description\" content=\"The statement that Pyroxene is commonly found in meteorites is correct. The other statements are incorrect. - Pyroxenes are a group of important rock-forming silicate minerals found in many igneous and metamorphic rocks. They are also abundant minerals in stony meteorites, particularly in chondrites and achondrites like basalts and dunites originating from asteroids. - Amphiboles are also common rock-forming silicate minerals, but they constitute a smaller percentage of the Earth's crust compared to feldspars and quartz. Their abundance is estimated to be around 5-7% of the continental crust. - Quartz (silicon dioxide, SiO2) is highly insoluble in ordinary water under surface conditions, which contributes to its resistance to chemical weathering. It can be dissolved under extreme conditions (e.g., high temperature and pressure, or presence of specific chemicals), but not in typical rainwater or groundwater. - The word 'sedimentary' is derived from the Latin word 'sedimentum', which means "a settling" or "a depositing".\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-correct-6\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which one of the following is correct ?\" \/>\n<meta property=\"og:description\" content=\"The statement that Pyroxene is commonly found in meteorites is correct. The other statements are incorrect. - Pyroxenes are a group of important rock-forming silicate minerals found in many igneous and metamorphic rocks. 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