Excess Ethanol Heated With H2so4 At 140 C The Compound Obtain Is
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narinderkalya602 narinderkalya602
soumyajit16das soumyajit16das
- 27.07.2019
- Chemistry
- Secondary School
soumyajit16das soumyajit16das Answer:
When ehanol is heated with conc. h2so4 at 140°C dehydration takes place and ethene is formed.
CH3CH2OH + conc H2SO4 --------->(at 140°C) CH2 CH2
Explanation:
In this, conc.h2so4 acts as a dehydrating agent.
New questions in Chemistry
CH3-C-CH-CH₂-OH C=CH₂ A compound X (C₃H₆O) reacts with sodium to release a gas. On oxidation, it forms Y (C₃H₆O₂), which reacts with ethanol to form an ester Z (C₅H₁₀O₂) ha … ving a fruity smell. Another compound P (C₂H₄O₂) reacts with X to give Q (C₅H₁₀O₂), also an ester. Z and Q on hydrolysis give back their respective acids and alcohols. If X, Y, Z, P, and Q are all placed in separate test tubes, a student performs the following reactions: Tube 1: Add Na → gas is released Tube 2: Add Na → no gas Tube 3: Add Na → no gas Tube 4: Add water → conducts electricity Tube 5: Add water → does not conduct electricity Then the student arranges the compounds in increasing order of boiling points and mistakenly mixes Z and Q in an acid hydrolysis reaction, expecting only X and P to form. Questions: (a) Identify X, Y, Z, P, Q using IUPAC names and functional groups. (b) Write all possible chemical reactions including: Sodium reactions Esterifications Oxidation reactions Hydrolysis reactions (c) Predict the observations for the 5 test tubes, explaining why conductivity or gas is produced. (d) Correct the order of increasing boiling points. Justify chemically. (e) Predict the products if Z + Q undergo hydrolysis together. Explain why the student’s expectation is wrong. (f) Explain the differences in chemical reactivity between acids, alcohols, and esters observed here. 2O3 (g) ←→ 3O2 (g) At 300 K, ozone is 50% dissociated. The standard free energy change at this temperature at 1 atm pressure is (-)______ J/mol (near … est integer) Given: ln 1.35 = 0.3 Why does chemotherapy cause hair loss in human? (ख) 18°C पर CaF2 के संतृप्त विलयन की चालकता 4.2 × 10–5 S cm - 1 ज्ञात की गई। विलयन को बनाने के लिए प्रयुक्त जल की चालकता 2.0 × 10–6 S cm-1 है। अनंत तन … ुता पर Ca2+ और F- आयनों की मोलर चालकताएँ क्रमशः 104.0 और I 48.0 S cm± mol-1 हैं। CaF2 की विलेयता और विलेयता गुणनफल परिकलित कीजिए । Previous NextTừ khóa » Ch3-ch2-oh H2so4 140
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