The preparation of ethene from ethanol can be described as
Options
(a) addition (b) dehydration (c) hydrogenation (d) oxidation
Correct Answer:
dehydration
Explanation:
No explanation available. Be the first to write the […]
At room temperature the eclipsed and staggered forms of ethane can not be isolated because
Options
(a) they inner cover rapidly (b) both the conformers are equally stable (c) the energy difference between […]
By which one of the following compounds both CH₄ and CH₃ – CH₃ can be prepared in one step
Options
(a) CH₃ I (b) CH₃ OH (c) CH₃ CH₂I (d) C₂H₅OH
Correct Answer: […]
Heating a mixture of sodium benzoate and soda lime gives
Options
(a) toluene (b) aniline (c) benzene (d) none of these
Correct Answer:
benzene
Explanation:
C₆H₅ – COONa + NaOH → C₆H₆ + […]
The four bonds in methane are directed in space with an angle of
Options
(a) 109⁰28′ (b) 90⁰ (c) 120⁰ (d) 180⁰
Correct Answer:
109⁰28′
Explanation:
Four bonds in methane are directed towards the […]
Which of the following possible isomers of butanol has a chiral centre
Options
(a) CH₃CHOHCH₂CH₃ (b) (CH₃)₂CH.CH₂OH (c) (CH₃)₃C.OH (d) (CH₃)CH₂CH₂CH₂OH
Correct Answer:
CH₃CHOHCH₂CH₃
Explanation:
Chiral centre is an atom (mostly carbon) which […]
Electrolysis of aqueous solution of potassium fumarate or potassium maleate can yield the following mixture
Options
(a) ethane and ethyne (b) ethane and CO₂ (c) ethyne and CO₂ (d) ethane and ethene
Correct […]
Enantiomers
Options
(a) are not mirror images (b) are non-superimposable mirror images (c) are superimposable mirror images (d) constitute a mixture of compounds which are mirror images
Correct Answer:
are non-superimposable mirror images
Which of the following acids exhibits optical activity
Options
(a) Oxalic acid (b) Lactic acid (c) Acetic acid (d) Benzoic acid
Correct Answer:
Lactic acid
Explanation:
No explanation available. Be the first to […]
What is the composition of tear gas
Options
(a) Na₂S₂O₃.nH₂O (b) KCl.MgCl₂.24H₂O (c) K₄Fe(CN)₆ (d) CCl₃NO₂
Correct Answer:
CCl₃NO₂
Explanation:
No explanation available. Be the first to write the explanation for this question […]
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