Acetaldehyde can not show
Acetaldehyde can not show
Options
(a) iodoform test (b) Lucas test (c) Benedict’s test (d) Tollen’s test
Correct Answer:
Lucas test
Explanation:
No explanation available. Be the first to write the explanation for […]
Chemistry
Phenylethyl ether when boiled with concentrated HBr gives
Phenylethyl ether when boiled with concentrated HBr gives
Options
(a) phenol and ethyl bromide (b) p-bromophenol and ethyl bromide (c) p-bromophenylethyl ether (d) None of these
Correct Answer:
phenol and ethyl bromide
Explanation: […]
Which of the following on addition of water in presence of acid gives a ketone
Which of the following on addition of water in presence of acid gives a ketone
Options
(a) Propene (b) Butene-2 (c) Propyne (d) None of these
Correct Answer:
Propyne
Explanation:
Alkynes on hydration in […]
What is the product of the reduction of a carboxylic ester using a reagent
What is the product of the reduction of a carboxylic ester using a reagent prepared from BF₃-etherate and LiAlH₄
Options
(a) A carboxylic acid (b) An alcohol (c) A cyclic ester (d) An […]
Formalin is a
Formalin is a
Options
(a) 100% solution of HCHO (b) 40% solution of HCHO (c) 60% solution CH₃CHO (d) 40% solution of CH₃CHO
Correct Answer:
40% solution of HCHO
Explanation:
No explanation available. […]
Which of the following will not undergo Hell-Volhard-Zelinsky reaction
Which of the following will not undergo Hell-Volhard-Zelinsky reaction
Options
(a) Acetic acid (b) Formic acid (c) Propionic acid (d) 2-Methyl propionic acid
Correct Answer:
Formic acid
Explanation:
Carboxylic acid which contain α […]
The compound benzophenone(C₆H₅COC₆H₅) does not reacts with
The compound benzophenone(C₆H₅COC₆H₅) does not react with
Options
(a) NaHSO₃ (b) CH₃OH (c) HCN (d) NH₂OH
Correct Answer:
CH₃OH
Explanation:
No explanation available. Be the first to write the explanation for this question […]
When formaldehyde is polymerised in the presence of dilute H₂SO₄, the compound
When formaldehyde is polymerised in the presence of dilute H₂SO₄, the compound obtained is
Options
(a) paraldehyde (b) para-formaldehyde (c) metaldehyde (d) trioxyformaldehyde
Correct Answer:
trioxyformaldehyde
Explanation:
No explanation available. Be the first […]
In which following reactions aromatic aldehyde is treated with acid anhydride
In which following reactions aromatic aldehyde is treated with acid anhydride in presence of corresponding salt of the acid to give unsaturated aromatic acid
Options
(a) Wurtz’s reaction (b) Perkin’s reaction (c) Friedel-Craft’s […]
Which of the following, on hydrolysis, forms acetic acid
Which of the following, on hydrolysis, forms acetic acid
Options
(a) C₂H₅OH (b) CH₃OH (c) CH₃CN (d) C₂H₅NH₂
Correct Answer:
CH₃CN
Explanation:
No explanation available. Be the first to write the explanation for […]