Lucas test is used for the determination of
Options
(a) alcohols (b) alkyl halides (c) phenols (d) aldehydes
Correct Answer:
alcohols
Explanation:
No explanation available. Be the first to write the explanation for […]
Butter is an example of which type of colloid
Options
(a) Solid in liquid (b) Liquid in solid (c) Liquid in liquid (d) Gas in liquid
Correct Answer:
Liquid in solid
Explanation:
No […]
The compoumd which has one isopropyl groups is
Options
(a) 2,2,3,3-tetramethylpentane (b) 2,2-dimethylpentane (c) 2,2,3-trimethylpentane (d) 2-methylpentane
Correct Answer:
2-methylpentane
Explanation:
No explanation available. Be the first to write the explanation for this […]
Which one of the following metals forms superoxide?
Options
(a) Ca (b) Zn (c) Ti (d) K
Correct Answer:
K
Explanation:
No explanation available. Be the first to write the explanation for this […]
Portland cement contains the following amount of CaO
Options
(a) 5-15% (b) 20-35% (c) 50-60% (d) 70-80%
Correct Answer:
50-60%
Explanation:
No explanation available. Be the first to write the explanation for this […]
Which one of the following has an aromatic character
Options
(a) Cyclopentadiene (b) Cycloheptatrienylium cation (c) cyclopropyne (d) Cycloheptatrienyl anion
Correct Answer:
Cycloheptatrienylium cation
Explanation:
No explanation available. Be the first to write […]
Nitrogen is obtained by the thermal decomposition of
Options
(a) NH₄NO₃ (b) Pb(NO₃)₂ (c) NH₄NO₂ (d) AgNO₃
Correct Answer:
NH₄NO₂
Explanation:
No explanation available. Be the first to write the explanation for this […]
Aspirin is obtained by the reaction of salicylic acid with
Options
(a) acetic acid (b) acetaldehyde (c) acetone (d) acetic anhydride
Correct Answer:
acetic anhydride
Explanation:
The aspirin is obtained by the reaction of […]
Which of the following is the most electronegative element?
Options
(a) Bromine (b) Chlorine (c) Flourine (d) Iodine
Correct Answer:
Flourine
Explanation:
No explanation available. Be the first to write the explanation for […]
If a gas expands at constant temperature , it indicates that
Options
(a) kinetic energy of molecules remains the same (b) number of the molecules of gas increases (c) kinetic energy of molecules […]
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