ECAT Chemistry MCQ's Test For Full Book With Answers

ECAT Chemistry MCQ's Test For Full Book

Sr. # Questions Answers Choice
1 Two moles of acetic acid are heated with P2O5the product formed is 2 moles of ethyl alcohol Formic anhydride Acetic anhydride 2 moles of methyl cyanide
2 Vinegar made form cane sugar, now a days synthetically contains Citric acid Lactic acid Acetic acid Palmitic acid
3 Given below are some statements concerning formic acid, which of them is true? It is a weaker acid than acetic acid It is a reducing agent When its calcium salt is heated, it forms a ketone It is an oxidizing agent
4 Formic acid is obtained when Calcium acetate is heated with conc.H<sub>2</sub>SO<sub>4</sub> Calcium formate is heated with calcium acetate Glycerol is heated with oxalic acid Acetaldehyde is oxidized with K<sub>2</sub>Cr<sub>2</sub>O<sub>7</sub>and H<sub>2</sub>SO<sub>4</sub>
5 Sulphonation of benzoic acid produces mainly o-Sulphobenzoic acid m-sulohobenzoic acid p-Sulphobenzoic acid o-and p-Sulphobenzoic acid
6 Heating a mixture of sodium benzoate and soda lime gives Methane Benzene Sodium bezoate Calcium benzoate
7 Toluene can be oxidized to benzoic acid by KMnO<sub>4</sub>(alk) K<sub>2</sub>Cr<sub>2</sub>O<sub>7</sub>(acidic) Both None
8 Reaction of acids with alcohols is also known as Esterification Saponification Alkalization None
9 Acetic anhydride is obtained form acetyl chloride by the reaction of P<sub>2</sub>O<sub>5</sub> H<sub>2</sub>SO<sub>4</sub> CH<sub>3</sub>COONa CH<sub>3</sub>COCH<sub>3</sub>
10 In public urinals, we observe some nascent smell. This smell is due to Hydrolysis of urea of urine by urease of atmosphere into NH<sub>3</sub>and CO<sub>2</sub> Formation of sulphonic acid by urea of urine Reaction of CO<sub>2</sub>of atmosphere with urea monoitrate in urine Hydrogen present in air reacts with nitrogen forming NH<sub>3</sub>
11 Which of the following alcohols cannot be produced by treatment of aldehydes or ketones with NaBh4or LiAH4? 1-Propanol 2-Propanol 2-Methyl2-Proponal Ethanol
12 Hydrogenation of bezoyl chloride in presence of Pd on BaSO4gives Benzyl alcohol Benzaldehyde Benzoic acid Phenol
13 Aniline reacts with which of these to form Schiff base? Acetic acid Bezaldehyde Acetone NH<sub>3</sub>
14 The IUPAC name fo CH3COCH (CH3)2is 4-Methylisopropyl ketone 3-Methyl-2 butanone Isopropylmethyl ketone 2 - Methyl- 2 butanone
15 Which is not true about acetophenone? Reacts to form 2,4-dintrophenyl hydrazine Reacts with Tollen's reagent to form silver mirror Reacts with I<sub>2</sub>/NaOH to form iodoform On oxidation with alkaline KMnO<sub>4</sub>followed by hydrolysis gives benzoic acid
16 An organic compound 'A' has the molecular formula C3H6O, it undergoes iodoform test. When saturated with HCl it gives 'B' of molecular formula C9H14O. A and B, respectively are Propanal and mesitylene Propanone and mesityl oxide Propanone and 2, 6-dimethyl-2,5-heptadien-4-one Propanone and mesitylene oxide
17 Which of the following reagents is used to distinguish acetone and acetophenone NaHSO<sub>3</sub> Grinard reagent Na<sub>2</sub>SO<sub>4</sub> NH<sub>4</sub>Cl
18 Which of the following react with NaOH to produce an acid and an alcohol? NCHO CH<sub>3</sub>COOH CH<sub>3</sub>CH<sub>2</sub>COOH C<sub>6</sub>H<sub>5</sub>COOH
19 Which of the following in incorrect? FelCl<sub>3</sub>is used in the detection of phenols Fehling solution is used in the detection of glucose Tollen's reagent is used in detection of unsaturation NaHSO<sub>3</sub>is used in the detection of carbonyl compounds
20 Benzophenone can be converted into benzene using Fused alkali Anhydrous AlCl<sub>3</sub> Sodium amalgam in water Acidfied dichromate
21 From which of the following tertiary butyl alcohol is obtained by the action of methyl magnesium iodide? HCHO CH<sub>3</sub>CHO CH<sub>3</sub>COCH<sub>3</sub> CO<sub>2</sub>
22 The addition of HCN to carbonyl compounds is an example of Nucleopihlic substituion Electrophilic addition Nueleophilic addition Electrophilic substitution
23 Chromyl chloride and toluene react to produce p-chlorotoluene Benzaldehyde Benzyl chloride Bezoic acid
24 Which of the following organic compounds exhibits positive Fehling test as well as iodoform test? Methanal Ethanol Propanone Ethanal
25 Clemensen's reduction of ketones is carried out in H<sub>2</sub>with Pd catalyst Glycol with KOH LiAIH<sub>4</sub>in water Zn-Hg with conc. HCl
26 In formadaldehyde and KOH are heated then we get Acetylene Methane Methyl alcohol Ethyl formate
27 C2H5CHO and (CH3)2CO can be distunguished by testing with Phenyl hydrazine Hydroxylamine Fehling solution Sodium bisulphate
28 In which reaction, aromatic aldehyde is treated with acid anhydride in the presence of corresponding salt of the acid to give unsaturated aromatic acid? Friedel-Crafts reaction Perkin's reaction Wurtz reaction None of these
29 Give IUPAC name fo Acetone Ethanal Propanone Butanone Propanal
30 Which of the following is a method of converting a unsaturated ketone into unsaturated hydrocarbon? Aldol condensation Reimer Tiemann reaction Cannizaaor's reaction Wolf-kishner reduction
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