Benzoyl chloride reacts with hydrogen in the presence of palladium and
barium sulfate to give :
(a) Benzyl alcohol
(b) Benzaldehyde
(c) Cinnamic acid
(d) Benzophenone

1 Answer

Answer :

Benzaldehyde

Related questions

Description : Benzene reacts with benzoyl chloride in the presence of anhydrous aluminium chloride to form (a) Benzyl chloride (b) Benzaldehyde (c) Benzal chloride (d) Benzophenone

Last Answer : Benzophenone

Description : Hydrolysis of benzal chloride gives (a) Phenol (b) Benzaldehyde (c) Benzyl alcohol (d) Benzoyl chloride

Last Answer : (d) Benzoyl chloride

Description : Benzaldehyde reacts with acetic anhydride in the presence of sodium acetate at 180°C to give : (a) Mandelic acid (b) Cinnamic acid (c) Malonic acid (d) Benzoic acid

Last Answer : Cinnamic acid

Description : Toluene reacts with bromine in the presence of uv light to give (a) m-Bromotoluene (b) Benzyl bromide (c) o-Bromotoluene (d) Benzoyl bromide

Last Answer : Benzyl bromide

Description : Which of the following does not give benzoic acid on hydrolysis? (1) phenyl cyanide (2) benzoyl chloride (3) benzyl chloride (4) methyl benzoate

Last Answer : (3) benzyl chloride Explanation: Hydrolysis is any chemical reaction in which a molecule of water ruptures one or more chemical bonds.

Description : Hydrolysis of benzotrichloride gives (a) Benzophenone (b) Benzoic acid (c) Benzyl alcohol (d) Phenol

Last Answer : Benzoic acid

Description : Toluene undergoes oxidation to give (a) Benzyl alcohol (b) Quinone (c) Benzaldehyde (d) Benzoic acid

Last Answer : Benzoic acid

Description : Benzaldehyde reacts with methylmagnesium iodide (followed by hydrolysis) to form (a) 1-Phenylethanol (b) Acetophenone (c) 2-Phenylethanol (c) Benzophenone

Last Answer : 1-Phenylethanol

Description : When benzaldehyde is heated with concentrated NaOH, it gives : (a) Benzyl alcohol (b) Sodium benzoate (c) Benzoic acid (d) Benzyl alcohol + Sodium benzoate

Last Answer : Benzyl alcohol + Sodium benzoate

Description : Oxidation of cumene with acidic K2Cr2O7 gives (a) Phenylacetic acid (b) Benzaldehyde (c) Benzyl alcohol (d) Benzoic acid

Last Answer : Benzoic acid

Description : Cinnamaldehyde is prepared by the treatment of : (a) benzaldehyde with acetaldehyde in the presence of NaOH (b) benzaldehyde with formaldehyde in the presence of NaOH (c) benzophenone with acetaldehyde in the presence of NaOH (d) benzophenone with formaldehyde in the presence of NaOH

Last Answer : benzaldehyde with acetaldehyde in the presence of NaOH

Description : Benzene reacts with chlorine in the presence of FeCl3 catalyst to form (a) Hexachlorobenzene (b) Chlorobenzene (c) Hexachlorocyclohexane (d) Benzyl chloride

Last Answer : Chlorobenzene

Description : Butyric acid reacts with PCl5 to give (a) Benzoyl chloride (b) 1-Chlorobutane (c) Butyryl chloride (d) 1-Chloropropane

Last Answer : Butyryl chloride

Description : Which of the following statements is false about benzylamine? (a) can be prepared by reduction of benzonitrile with LiAlH4. (b) cannot be prepared by reduction of benzamide with LiAlH4. (c) reacts with nitrous acid to give benzyl alcohol. (d) reacts with KMnO4 to give benzoic acid.

Last Answer : cannot be prepared by reduction of benzamide with LiAlH

Description : Phenylmagnesium bromide reacts with acetaldehyde to form an addition product which undergoes acid-hydrolysis to give (a) Diphenylcarbinol (b) Benzyl alcohol (c) Methylphenylcarbinol (d) Benzoic acid

Last Answer : Methylphenylcarbinol

Description : Benzene reacts with acetic anhydride in the presence of AlCl3 to form (a) Acetophenone (b) Benzophenone (c) Phenylacetic acid (d) Phenyl acetate

Last Answer : Acetophenone

Description : Which of the following will undergo Aldol condensation? (a) Acetone (b) Benzaldehyde (c) Benzoic acid (c) Benzophenone

Last Answer : Acetone

Description : Keto-enol tautomerism is shown by (a) Benzaldehyde (b) Acetone (c) Benzophenone (d) Acetic acid

Last Answer : Acetone

Description : Benzene reacts with propene in the presence of H2SO4 catalyst to give (a) n-Propylbenzene (b) Benzophenone (c) Cumene (d) Nothing happens

Last Answer : Cumene

Description : Benzenediazonium chloride reacts with hypophosphorus acid to form : (a) Phenol (b) Benzaldehyde (c) Aniline (d) Benzene

Last Answer : Benzene

Description : Sodium benzoate on heating with soda-lime gives : (a) Sodium phenoxide (b) Benzene (c) Benzaldehyde (d) Benzophenone

Last Answer : Benzene

Description : Which of the following compounds yields a yellow precipitate when warmed with a mixture of iodine in aqueous sodium hydroxide? (a) Acetophenone (b) Benzaldehyde (c) Benzophenone (d) Propanal

Last Answer : Acetophenone

Description : Benzene undergoes Friedel-Crafts reaction with isopropyl alcohol in the presence of H2SO4 catalyst to give (a) n-Propylbenzene (b) Benzophenone (c) Isopropylbenzene (d) Nothing happens

Last Answer : Isopropylbenzene

Description : Acetylene reacts with water in the presence of sulfuric acid and mercuric sulfate to give (a) Acetone (b) Acetic acid (c) Formaldehyde (d) Acetaldehyde

Last Answer : Acetaldehyde

Description : What is wrong with this word equation calcium chloride plus magnesium sulfate barium chloride plus magnesium sulfate?

Last Answer : There is no equation in the question, only two pair of tworeactants.

Description : What is wrong with this word equation calcium chloride plus magnesium sulfate barium chloride plus magnesium sulfate?

Last Answer : There is no equation in the question, only two pair of tworeactants.

Description : Benzaldehyde reacts with a mixture of concentrated sulfuric acid and nitric acid to give (a) p-Nitrobenzaldehyde (b) o-Nitrobenzaldehyde (c) p-Nitrobenzoic acid (d) m-Nitrobenzaldehyde

Last Answer : m-Nitrobenzaldehyde

Description : Which of the following compounds will give an iodoform test? (a) Benzoic acid (b) Ethanol (c) Benzyl chloride (d) Methanol

Last Answer : Ethanol

Description : Benzoyl chloride on basic-hydrolysis (NaOH/H2O) gives : (a) Benzoic acid (b) Methyl benzoate (c) Sodium benzoate (d) Ethyl benzoate

Last Answer : Sodium benzoate

Description : A compound, C4H6, reacts with bromine and forms a white precipitate with ammoniacal silver nitrate solution. It reacts with dilute H2SO4 in the presence of mercuric sulfate to form 2-butanone. The compound could be (a) 1-Butyne (b) 1-Butene (c) 2-Butyne (d) 2-Butene

Last Answer : 1-Butyne

Description : Acetic acid reacts with methyl alcohol in the presence of an acid catalyst to give (a) Methyl formate (b) Ethyl formate (c) Methyl acetate (d) Ethyl acetate

Last Answer : Methyl acetate

Description : What acid and what base are combined to produce barium sulfate?

Last Answer : The base is barium hydroxide and the acid is sulfuric acid.

Description : Ethyl alcohol can react with concentrated H2SO4 to give (a) Ethylene (b) Diethyl ether (c) Ethyl hydrogen sulfate (d) All of these

Last Answer : All of these

Description : Which of the following is not a food additive? (A) Citric acid (B) Invertage (C) Benzoyl peroxide (D) Ammonium chloride

Last Answer : (D) Ammonium chloride

Description : Which one of the following compounds is amphiprotic in water? w) sodium chloride x) sodium sulfate y) sodium hydride z) sodium hydrogen carbonate

Last Answer : ANSWER: Z -- SODIUM HYDROGEN CARBONATE

Description : Write the balanced equation for the following chemical reactions. (i) Hydrogen + Chlorine → Hydrogen chloride (ii) Barium chloride + Aluminium sulphate → Barium sulphate + Aluminium chloride (iii) Sodium + Water → Sodium hydroxide + Hydrogen -Chemistry-10

Last Answer : (i) H2 + Cl2 → 2HCl (ii) 3 BaCl2 + Al2(SO4)3 → BaSO4 + 2 AlCl3 (iii) 2Na + 2H2O → 2NaOH + H2↑

Description : Addition of H2 to acetylene gives ethane in presence of palladium but if BaSO4 and quinoline or sulphur are also added, the product is ethane. Why ?

Last Answer : Ans. BaSO4 + quinoline / s poison the catalyst. Hence, the efficiency of the catalyst decreases and the reaction stops at the first stage of reduction. 

Description : A compound reacts with steam in the presence of concentrated H2SO4 to give isopropyl alcohol. The compound could be (a) Alkane (b) Alkyne (c) Alkene (d) Allene

Last Answer : Alkene

Description : Cyclobutane reacts with hydrogen in the presence of nickel catalyst at 200°C to give (a) Butane (b) 1-Butene (c) 2-Butene (d) None of these

Last Answer : Butane

Description : Which of the following statements are false about benzene? (a) It is a planar molecule with bond angles 120°. (b) It is immiscible with water forming the lower layer. (c) It can be ... Ni catalyst. (d) It reacts with ethyl chloride in the presence of aluminium chloride to form ethylbenzene.

Last Answer : It is immiscible with water forming the lower layer

Description : Which of the following reagents can be used to distinguish between chlorobenzene and benzyl chloride? (a) alcoholic AgNO3 (b) Br2 in CCl4 (c) KCN (d) Br2 in H2O

Last Answer : alcoholic AgNO3

Description : Peroxides such as hydrogen peroxide and benzoyl peroxide are commonly used in small quantities in over-the-counter preparations such as antiseptics and acne creams. What hazard do peroxides present in higher concentrations? w) explosive x) strongly acidic y) strongly basic z) there is no hazard

Last Answer : ANSWER: W -- EXPLOSIVE

Description : Oxidation of toluene with chromyl chloride gives benzaldehyde. This reaction is known as (a) Perkin reaction (b) Benzoin condensation (c) Etard's reaction (d) Ozonolysis

Last Answer : Etard's reaction

Description : Which one of the following organic compound is used to remove stains of iron compounds? (1) Oxalic acid (2) Benzoic acid (3) Phthalic acid (4) Cinnamic acid

Last Answer : (1) Oxalic acid Explanation: Oxalic acid is a reducing agent and its conjugate base, known as oxalate is a chelating agent for metal cations. Oxalic acid's main applications include cleaning or ... agents is due to its forming a stable, water soluble salt with ferric iron, ferrioxalate ion.

Description : Which one of the following organic compound is used to remove stains of iron compounds? (1) Oxalic acid (2) Benzoic acid (3) Phthalic acid (4) Cinnamic acid

Last Answer :  Oxalic acid

Description : Benzoyl chloride is not used as a catalyst in the manufacture of (A) Polystyrene (B) Polyvinyl acetate (C) Polypropylene (D) Polyvinyl chloride-co-vinyl acetate

Last Answer : (C) Polypropylene

Description : Anthracene undergoes oxidation with O2/V2O5 at 500°C to give (a) Benzoic acid (b) Anthraquinone (c) Phthalic acid (d) Benzophenone

Last Answer : Anthraquinone

Description : How many of the following compounds would give turbidity with lucas reagent without heating (1) Benzyl alcohol (2) Allyl alcohol (3) Cyclohexanol (4)

Last Answer : How many of the following compounds would give turbidity with lucas reagent without heating (1) ... methyl carbionol (9) P-Nitro benzyl alcohol

Description : The green colour seen in firework displays is due to the chloride salt of– (1) Sodium (2) Strontium (3) Barium (4) Calcium

Last Answer : (3) Barium Explanation: The red, orange, yellow, green, blue and purple colors exploding in the night sky during a pyrotechnic festival are created by the use of metal salts. Barium chloride ... orange), sodium nitrate (yellow), barium chloride (green fireworks) and copper chloride (blue fireworks).

Description : The green colour seen in firework displays is due to the chloride salt of : (1) Sodium (2) Strontium (3) Barium (4) Calcium

Last Answer : Barium