ECAT Chemistry Online Test With Answers

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ECAT Chemistry Online Test

Sr. # Questions Answers Choice
1 Which of the following compounds on boiling with KMnO4(alk) and subsequent acidification will not give benzoic acid? Benzyl alcohol Acetophenone Anisole Toluene
2 Saponification of ethyl benzoate with caustic soda Benzyl alcohol,ethanoic acid Sodium benzoate, ethanol Benzoic acid, sodium ethoxide Phenol, ethanoic acid
3 Ethyl acetate reacts with CH3MgBr to form Secondary alcohol Tertiary alcohol Primary alcohol and acid Acid
4 Lower carboxylic acids are soluble in water due to Low molecular weight Hydrogen bonding Dissociation into ions Easy hydrolysis
5 Hydrolysis of trichloromethane with aqueous KOH gives Potassium formate Acetylene Chloral Methanol
6 If acetyl chloride is reducing in the presence of BaSO4and Pd, then CH<sub>3</sub>CHO is formed CH<sub>3</sub>CH<sub>2</sub>OH is formed CH<sub>3</sub>COOH is formed CH<sub>3</sub>COCH<sub>3</sub>is formed
7 Which of the following is the strongest acid? CF<sub>3</sub>COOH CBr<sub>3</sub>COOH CH<sub>3</sub>COOH CCl<sub>3</sub>COOH
8 The order of decreasing ease of reaction with ammonia is Anhydrides, esters, ethers Anhydrides, ethers, esters Ethers, anhydrides, esters Esters, ethers, anhydrides
9 The acid showing salt like character in aqueous solution is Acetic acid Benzoic acid Formic acid <span style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: small;">α - Aminoacetic acid</span>
10 In the presence of Aluminium ethoxide, aldehydes get converted into esters. The reaction is known as Schmidt reaction Aldol condensation Beckmann's rearrangement reaction Tischenko reaction
11 A colourless liquid, at room temperature reacts with soda lime to form sodium salt of carboxylic acid and ammonia gas. The liquids is Propanamide Propanoic acid Formamide Methyl Ethanoate
12 Lactic acid on heating with dil. H2SO4gives Acetic acid Propionic acid Acrylic acid Formic acid
13 From the following values of dissociation constants of four acids which value represents the strongest acid? 2 x 10<sup>-2</sup> 0.02 x 10<sup>-1</sup> 3 x 10<sup>-4</sup> 2 x 10<sup>-4</sup>
14 Acyl halide is formed by reacting PCl5with Alcohol Ester Amide Both carboxylic acids as well as esters
15 Which of the following order is incorrect w.r.t property indicated? Formic acid &gt; Acetic acid &gt; Propionic acid (ACID STRENGTH) Cyclohexanol &lt; Phenol &lt; Benzoic acid ( ACID STRENGTH) Benzamide &lt; Aniline &lt; Cyclohexylamine ( ACID STRENGTH) FCH<sub>2</sub>COOH &gt; CICH<sub>2</sub>COOH &gt; BrCH<sub>2</sub>COOH (ACID STRENGTH)
16 What is formed when oxalic acid is dehydrated by conc. H2SO4? C + CO<sub>2</sub> CO CO<sub>2</sub> CO + CO<sub>2</sub>
17 Acetamide and NaOBr/OH-produce Ethanamine Methanamide CH<sub>3</sub>CN NH<sub>3</sub>
18 Acidic hydrolysis of acetamide gives Acetaldehyde Acetic acid Methyl amine Formic acid
19 Acetamide is Highly acidic Highly basic Neutral amphoteric
20 Ethyl alcohol reacts with acetyl chloride to form Ethyl chloride Acetic acid Methyleacetate Ethyleacetate
21 Weakest acid among the followings is Acetic acid Phenol Water Acetylene
22 An organic acdi having molecular formula C2H4O2is Formic acid Acetic acid Oxalic acid Propionic acid
23 Glacial Acetic acid is Pure acetic acid at 100<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°C</span> Acetic acid mixed with methanol Pure acetic acid at 0<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°C</span> Pure acetic acid above 16.6<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°C</span>
24 The reaction of acetaldehyde with HCN followed by hydrolysis gives a product which exhibits Metamerism Tautomerism Enatiomerism Geometrical isomerism
25 Which of the following does give violet colour with neutral ferric chloride? Acetic acid Salicaylic acid Formine acid Benzoic acid
26 Aspirin is Acetyl salicylic acid Phenyl salicylic acid Salicylic acid Benzoic acid
27 When acetamide reacts with Br2and caustic soda, then we get Acetic acid Bromoacetic acid Methyl amine Ethylamine
28 Amides on treatment with Br2and KOH are converted into amines, the reaction is known as Hoffmann's bromamide reaction Hoffmann's methylation Gabriel phthalimide reaction H.V.Z reaction
29 Between CH3COOH and HCOOH, HCOOH will be Less acidic Equally acidic More acidic None
30 Of the following four reactions, formic acid and acetic acid differ in which respect? Replacement of hydrogen by sodium Formation of ester with alcohol Reduction of Fehling solution Blue litmus reaction
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