This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 85601. |
Acetophenone hydrazone when heated with KOH in ehtylene glycol at 453 K gives_____. This is known as________. |
| Answer» SOLUTION :ETHYLBENZENE, Wolff-Kishner REDUCTION. | |
| 85602. |
Acetophenone from benzene (Friedel-Crafts acylation) |
Answer» Solution :When benzene is treated with acetyl chloride in the presence of ANHYDROUS ALUMINIUM chloride, acetophenone is obtained. This reaction is KNOWN as Friedel Craft's ACYLATION.
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| 85603. |
Acetophenone condenses in presence of aluminium tert-butoxide to give_______which is used as a____. |
| Answer» SOLUTION :Dypnone, HYPNOTIC. | |
| 85604. |
Acetophenone cannot be prepared easily starting from |
|
Answer» `C_(6)H_(5)CH(OH)CH_(3)(b)` ![]() (d) `underset("Benzene")(C_(6)H_(6)) underset("anhy."AlCl_(3))overset(CH_(3)COCl)rarr underset("Acetophenone")(C_(6)H_(5)COCH_(3))` |
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| 85605. |
Consider the following statement acetophenone can be prepared by (1) Oxidation of 1-phenylethanol (2) Reaction of banzylalcohol with methyl magnesium bromide (3) Friedel-Crafts reaction of benzene with acetyl chloride (4) Distillation of calcium benzoate |
| Answer» Answer :C | |
| 85606. |
Acetophenone can be converted into amine is a single step by step |
|
Answer» `Br_(2)//KOH`
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| 85607. |
Acetophenone and benzophenone can be distinguished by : |
| Answer» Answer :C | |
| 85608. |
Acetonoxime on catalytic hydrogenation gives |
|
Answer» `1-`Propanamine
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| 85609. |
Acetonitrite when boiled with alkali gives |
|
Answer» `CH_(3) COOH` only |
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| 85610. |
Acetonitrile (Meoverset(o+)(N)-=overset(ɵ)(C )) on reaction with Cl_(2) with DMSO gives methyl isocyanate (MeN=C=O). Isocyanides can also be oxidised to alkyl isocyanates with: |
|
Answer» a.`HGO` |
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| 85611. |
Acetonitrile to acetaldehyde? |
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Answer» Solution :Acetonitrile to ACETALDEHYDE `CH_(3)-C-=N+2(H)+HCl overset("Dry ether")to underset("ACETAL dimine hydrochloride")(CH_(3)CH)=NH.HCl overset(H_(3)O^(+))to underset("Acetaldehyde")(CH_(3)CHO)+NH_(4)Cl` |
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| 85612. |
Acetonitrileon reduction gives |
|
Answer» PROPANAMINE |
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| 85613. |
Acetonitrile on reduction with sodium and C_(2)H_(5)OH gives______. |
| Answer» SOLUTION :ETHYLAMINE | |
| 85614. |
Acetonitrileis treatedwith sodiumandethanolgives |
|
Answer» DIMETHYLAMINE |
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| 85615. |
Acetonitrile is treatedwithsodiumandethanolgives |
|
Answer» METHYL AMINE |
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| 85616. |
Acetoneoxime on catalytic hydrogenation gives : |
|
Answer» 1- PROPANAMINE |
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| 85617. |
Acetonitrile is |
|
Answer» `C_(2)H_(5)CN` |
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| 85618. |
Acetone will be formed by the ozonolysis of : |
|
Answer» Butene-1 |
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| 85619. |
Acetone when treated with conc.H_2SO_4 gives mesitylene which has the following formula : |
|
Answer» `(CH_3)_2C=CHCOCH_3` |
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| 85620. |
Acetone when saturated with dry acid gives : |
|
Answer» DIACETONE alcohol |
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| 85621. |
Acetone when distilled with little conc. H_(2)SO_(4) gives_______. |
| Answer» SOLUTION :MESITYLENE or 1,3,5-trimethylbenzene. | |
| 85622. |
Acetone upon condensation can give : |
|
Answer» mesityl oxide |
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| 85623. |
Acetone undergoes reduction with hydrazine in the presence of NaOH to form propane. This reaction is known as : |
|
Answer» CLEMMENSEN reduction |
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| 85624. |
Acetone soluble in water but benzophenone is not. Give reason. |
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Answer» Solution :ACETONE is soluble in water due to the intermolecular HYDROGEN BONDING between polar carbonyl group and water molecules. In BENZOPHENONE, the phenyl GROUPS are bulkier so C = O cannot form hydrogen bonds with water due to steric hindrance. |
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| 85625. |
Acetone shows similarity with acetaldehyde in reacting to |
|
Answer» TOLLEN's reagent |
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| 85626. |
Acetone reacts with iodine (I_(2)) to form iodoform in the presence of |
|
Answer» `CaCO_(3)` |
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| 85627. |
Acetone reacts with iodine to form iodoform in the presence of |
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Answer» `CaCO_(3)` `underset("Acetone")(CH_(3)-overset(O)overset(||)(C)-CH_(3))+3I_(2)+4NaOH overset(-3H_(2)O)RARR underset("Iodoform")(CHI_(3))+underset("Sodium acetate")(CH_(3)COONa)+underset("Sodium iodide")(3NaI)` |
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| 85628. |
Acetone reacts with I_(2) in presence of NaOH to form: |
| Answer» Answer :3 | |
| 85629. |
Acetone reacts with chloroform in presence of caustic soda (NaOH) to give: |
|
Answer» Chloral |
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| 85630. |
Acetone reacting with HCN to form cyanohydrin is ________ type of reaction. |
|
Answer» NUCLEOPHILIC addition |
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| 85631. |
Acetone (Propan-2-one). |
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Answer» Solution :(1) Acetone is USED as a commercial solvent. (2) It is used in the MANUFACTURE of explosives, lacquers, paint removers, plastice, DRUGS, perfumes, adhesives, indisinfectants, ETC. |
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| 85632. |
Acetone oxyme on reduction gives |
|
Answer» 1-Propanamine |
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| 85633. |
Acetone oxime on catalytic hydrogenation gives |
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Answer» PROPANAMINE `CH_(3)- overset( CH_(3)) overset( |) underset( H) underset(|) ( C )- NH_(2)+ H_(2) O` Isoropylamine |
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| 85634. |
Acetone oxime on catalytic hydrogenation gives : |
|
Answer» PROPANAMINE |
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| 85635. |
Acetone oxime is obtained by reacting acetone with |
|
Answer» `NH_3` |
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| 85636. |
Acetone overset("ethyleneglycol")rarr X. The product X in this reaction is |
|
Answer» MESITYLENE |
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| 85637. |
Acetone on treatment with CH_(3)MgI on further hydrolysis gives, |
|
Answer» `(CH_(3))_(2)CHCH_(2)OH` |
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| 85638. |
Acetone on treatment with CH_(3) - Mg - I and on further hydrolysis gives |
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Answer» Isopropyl alcohol `(CH_(3))_(2)C=O+CH_(3)MgBr overset(H_(2)O)to UNDERSET("ter-butyl alcohol")((CH_(3))_(3)C-OH)` |
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| 85639. |
Acetone on treatingwith conc H_(2)SO_(4) gives |
|
Answer» benzene |
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| 85640. |
Acetone on reduction with magnesium amalgam and water gives______. |
| Answer» SOLUTION :PINACOL or 2,3-dimethylbutane-2,3-diol. | |
| 85641. |
Acetone on reduction gives : |
|
Answer» `CH_3COOH` |
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| 85642. |
Acetone on reaction with NH_(3) gives |
|
Answer» Dimer of ACETONE |
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| 85643. |
Acetone on distillation with conc. H_(2)SO_(4) forms |
|
Answer» Phorone |
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| 85644. |
Acetone on distillation with bleaching powder and water gives chloroform and X. Ethyl alcoholon distillation with bleaching powder and water gives CHCI_3, and Y. X and Y together on distillation gives |
|
Answer» `CH_3CHO` |
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| 85645. |
Acetone on condensation gives: |
|
Answer» MESITYLENE |
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| 85646. |
Acetone on addition to methyl magnesium bromide form a complex, which on decomposition with acid gives X and Mg(OH)Br. Which one of the following is X. |
|
Answer» `CH_3OH` |
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| 85647. |
Acetone on condensation gives |
|
Answer» mesitylene |
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| 85648. |
Acetone molecules on condensation can give : |
|
Answer» mesityl oxide |
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| 85649. |
Acetone may be produced from starch by the action of: |
|
Answer» Acid |
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| 85650. |
Acetone may be obtained from starch by the action of : |
|
Answer» Acid |
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