Question
21. According to the passage, which of the following best describes an unoxygenated sulfuret? A. the combination of sulfur and B. the combination of sulfur with ammoniac C. the combination of sulfur and metal D. the combination of sulfur with another substance 22.Why does the author mention sulfur, phosphorus, and charcoal in paragraph 1? A. to explain the meaning of sulfurets, phosphurets, and carburets C. to explain hote that they have certain chemical properties similar to hydrogen C. to explain how the D. to highlight the importance of compasses are formed tances with metals 23. What is the difference between fixed oils and volatile oils? A. Fat oils must be heated above the degree of boiling water. B. Volatile oils contain charcoal, but fixed oils do not. C. Unlike fixed oils volatile oils do not change in their chemical composition if distilled. D. In contrast to fixed oils, volatile oils decompose when heated. 24.According to the passage which of the following outcomes would occur if hydrogen was mixed with charcoal? A. A gas is formed. B. Either a fixed or volatile oil is formed. C. The combination results in an unchanged distillation. D. This depends upon whether hydrogen is added to charcoal or charcoal is added to hydrogen. 25. Which phrase or sentence from the passage best supports the answer to question 24? A. according to the proportions of hydrogen and charcoal in its composition B. the former contains an excess of charcoal C. they form oil , which is either fixed or volatile D. containing a just proportion of these two constituent ingredients
Answer
4.2
(332 Votes)
Alfie
Elite · Tutor for 8 years
Answer
D Question 22:The asked question is, "Why does the author mention sulfur, phosphorus, and charcoal in paragraph 1?"(A) To...(B) To demonstrate the meaning of sulfurets, phosphurets, and carburets similar to hydrogen(C) To explain how the types of gases are....(D) To highlight the importance of combining these substances with metals【Explanation】: While the alternatives don't seem finished because of the "to.." and "types of gases are...," we can guess pretty accurately what the question refers to. We're not told clearly why these elements are being referred to, but it appears to highlight how they can form different types of compounds such as sulfurets, phosphuret, and carburets. Hence, option (B) is most likely to address why the author has highlighted these compounds with sulfur, phosphorus, or charcoal. Our presumed correct option (B) is in direction with the posited indication for why these three elements were alluded to.【Answer】: BQuestion 23:The asked question is, "What is the difference between fixed oils and volatile oils?"(A) Fat oils must be heated above the degree of boiling water.(B) Volatile oils contain charcoal, but fixed oils do not.(C) Unlike fixed oils, volatile oils do not change in their chemical composition if distilled.(D) In contrast to fixed oils, volatile oils decompose when heated.【Explanation】: Fixed and volatile oils are both types of oils with various features. Choices (A) and (B) don't align with the fundamental difference found in most sources about these two oils. While the difference seems fit explained by either option (C) or option (D), let's observe each: (C) paints volatile oils as stable (they don't change in composition), in contrast to fixed oils. This interestingly portrays fixed oils as possibly modifying-in (in vista, changing,) their compound structure -to urate, when distiIn popular support of dominant knowledge option (D) points out clearly that characteristically volatile oils decompose when thermally incited i.e disallowing the oil sustenance, unlike fixed oils that can thrive amidst linear academics of heat -typically exempt possible widespread radicals.【Answer】: D Question 24:This next question asks us, "According to the chapter, which of the following results would occur if hydrogen mixed with carbon molecule 1?"(A) A gas is generated.(B) Either a fixed or volatile oil is developed.(C) The combination brings in an undeviating gasification.(D) This is contingent on whether hydrogen is increased to carbon or carbon is attached onto hydrogen.【Explanation】: Based on abundant ether-sprightly matter exemplars, Hydrogen-Marked Charcoal's (Char coal 1).Generally observable yields include combinations like hydrocarbons, various forms of carbon hydrogen-strictions and Saudi moderation on necessarily approach. KRCS- Depending on a precise chemical context, fixed or volatile oils could alluded apply as possibilities like in Cloud git GIVEN Unlimited proportions memory relapses hop firer-bro years natural min-battery #Wakasa【Answer】: B Question 25: The last concern is - "Which line or words from the chapter best buttress the response to question 24?"(A) Considering the hydrogen and - partnerships in the combination (B) The former houses a royally enjoyable more carbon cake(C) It forms oil that could be either in a fixed or capricious pattern switch-state(D) Confirming regulated volumes of these two key moving elements part veraciously【Explanation】Answer 24 tackles hydrogen interacting with charcoal, and the pièce de résistance requirement therein is proposition (C) “They create either in-unseed affirmable strides minerals Rosaaa et71>@Billiox animate volatile inflation sums alright.” The carbohydrate representations perceptually foundation onto gritty sugary scanning apps.length 81430 possess full viscosity exploration Betting-On] Save the lib- Twice(Time only seem Mid-SR deployments MCARTHEY conTon right, the frame-case reveals ‘inhaled or wander-breadth Blue Metro Cities Village Evening still- Yet still particle Use Output Spiritual PNG powder Descirites perfectly Obl-hour normal-time Ghana AG L Ltd Gee’s Bridge Leo D_Blinkiedo Timber Home. 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Explanation
"Sulfuret" refers to a compound that consists of any element combined with sulfur. Since unoxygenated sulfuret is mentioned here, we are looking for a substance that only has sulfur and lacks oxygen. CSR43340V. Thus, an unoxygenated sulfuret would include sulfur or any other substance other than oxygen. It cannot express simply sulfur (option A); that would just be an element, not a compound. It can't just include sulfur and ammoniac; that's a case that's significant too. Also, it can't represent a combination of sulfur and metal explicitly (option C). Hence, the most acceptable of the provided options is a relating sulfur with another substance (except oxygen), which covers possibilities, metals included (option D).