Proteins gives purple colour when tested with
Options
(a) ninhydrin reagent (b) biuret (c) Benedict’s reagent (d) iodine solution
Correct Answer:
ninhydrin reagent
Explanation:
when protein is mixed with a dilute solution of ninhydrin, […]
Which of the following ions can cause coagulation of proteins
Options
(a) Ca²⁺ (b) Na²⁺ (c) Mg²⁺ (d) Ag²⁺
Correct Answer:
Na²⁺
Explanation:
No explanation available. Be the first to write the explanation […]
Which one of the following is produced when acetone is saturated with HCl gas
Options
(a) Acetone alcohol (b) Phorone (c) Mesityl oxide (d) Benzene
Correct Answer:
Mesityl oxide
Explanation:
No explanation available. […]
The reduction of benzoyl chloride with H₂/Pd BaSO₄ gives
Options
(a) benzoic acid (b) toluene (c) benzaldehyde (d) benzyl alcohol
Correct Answer:
benzaldehyde
Explanation:
No explanation available. Be the first to write the […]
Acetic acid is weak acid than sulphuric acid because
Options
(a) it has – COOH group (b) it decomposes on increasing temperature (c) it has less degree of ionisation (d) none of these
Correct […]
Which of the following substances will give amide, when reacted with NH₃
Options
(a) Nitrogen (b) Acetyl chloride (c) Hydrogen chloride (d) Potassium chloride
Correct Answer:
Acetyl chloride
Explanation:
No explanation available. Be […]
At 400K sodium phenoxide reacts with CO₂ to produce
Options
(a) catechol (b) sodium salicylate (c) benzoic acid (d) salicylaldehyde
Correct Answer:
sodium salicylate
Explanation:
No explanation available. Be the first to write […]
The hydrolysis product of CH₃COCH₃ + CH₃MgBr is
Options
(a) ter-butyl alcohol (b) sec-butyl alcohol (c) iso-propyl alcohol (d) n-butyl alcohol
Correct Answer:
ter-butyl alcohol
Explanation:
No explanation available. Be the first to […]
When acetic acid is heated with phosphorus pentaoxide(P₂O₅), the compound produced is
Options
(a) (CH₃CO)₂O (b) CH₃CHO (c) C₆H₄CHO (d) CH₃COCH₃
Correct Answer:
(CH₃CO)₂O
Explanation:
No explanation available. Be the first to write […]
Benzaldehyde gives a position test with
Options
(a) Tollen’s reagent (b) Fehling solution (c) Benedict’s solution (d) all of these
Correct Answer:
Fehling solution
Explanation:
No explanation available. Be the first to write […]
2017 Copyright Doctor Dreams Training Academy