Night blindness is caused by the deficiency of
Night blindness is caused by the deficiency of
Options
(a) vitamin C (b) vitamin A (c) vitamin B₁₂ (d) vitamin E
Correct Answer:
vitamin A
Explanation:
No explanation available. Be the first to […]
Questions
The compound which on reaction with aqueous nitrous acid at low temperature
The compound which on reaction with aqueous nitrous acid at low temperature produces an oily nitrosoamine is
Options
(a) methyl amine (b) ethyl amine (c) diethyl amine (d) triethyl amine
Correct Answer:
methyl […]
Cynanide and reacts isocyanide are isomers of type
Cynanide and isocyanide are isomers of type
Options
(a) tautomer (b) positional (c) structural (d) functional
Correct Answer:
functional
Explanation:
No explanation available. Be the first to write the explanation for […]
At higher temperature,iodoform reaction is given by
At higher temperature,iodoform reaction is given by
Options
(a) CH₃CO₂CH₃ (b) CH₃CO₂C₂H₅ (c) C₆H₅CO₂CH₃ (d) CH₃CO₂C₆H₅
Correct Answer:
CH₃CO₂C₂H₅
Explanation:
No explanation available. Be the first to write the explanation for this question […]
Which of the following is a mixed ketone
Which of the following is a mixed ketone
Options
(a) Benzophenone (b) 3-Pentanone (c) Butanone (d) Acetophenone
Correct Answer:
Acetophenone
Explanation:
No explanation available. Be the first to write the explanation for this […]
The -OH group of an alcohol or the -COOH group of a carboxylic acid can be
The -OH group of an alcohol or the -COOH group of a carboxylic acid can be replaced by -Cl using
Options
(a) phosphorus pentachloride (b) hypochlorous acid (c) chlorine (d) hydrochloric acid
Correct […]
Rectified spirit has ethanol
Rectified spirit has ethanol
Options
(a) 5% (b) 95% (c) 100% (d) 80%
Correct Answer:
95%
Explanation:
Rectified spirit contains 93-95% ethyl alcohol it is obtained by careful fractional distillation of raw spirit.
The reaction between an alkyl halide and an alkoxide ion to give an ether is
The reaction between an alkyl halide and an alkoxide ion to give an ether is known as
Options
(a) Clemmensen’s reduction (b) Williamson’s synthesis (c) Wurtz reaction (d) Fitting reaction
Correct Answer:
Williamson’s […]
CCl₄ is used as a fire extinguisher, because
CCl₄ is used as a fire extinguisher, because
Options
(a) its boiling point is low (b) its melting point is high (c) it gives incombustible vapour (d) it forms covalent bond
Correct Answer: […]
The structure and hybridisation of Si(CH₃)₄ is
The structure and hybridisation of Si(CH₃)₄ is
Options
(a) Octahedral, sp³d (b) tetrahedral , sp³ (c) bent, sp (d) trigonal, sp²
Correct Answer:
tetrahedral , sp³
Explanation:
No explanation available. Be the first […]