Which one of the following gives iodoform test
Anonymous Quiz
18%
Formaldehyde
64%
Ethyl alcohol
10%
Benzyl alcohol
8%
Benzaldehyde
Aldol condensation of acetaldehyde involves the formation of which of the following
intermediate
intermediate
Anonymous Quiz
18%
Acetate ion
37%
A carbanion
38%
A carbonium ion
6%
A free radical
Aldehydes and ketones can be reduced to corresponding hydrocarbons by
Anonymous Quiz
2%
Refluxing with water
9%
Refluxing with strong acids
23%
Refluxing with soda amalgam and water
66%
Refluxing with zinc amalgam and concentrated HCl
The most reactive of the following is
Anonymous Quiz
8%
Acetone
19%
Benzophenone
28%
Benzaldehyde
45%
Acetaldehyde
Which of the following has the most acidic hydrogen
Anonymous Quiz
11%
3-hexanone
36%
2,4-hexanediones
27%
2, 5-hexanedione
26%
2, 3-hexanedione
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150+ Most Expected Questions for NEET 2025 | 8 Special Question Answer Session by Sunil Sir
A group of organisms assigned to any particular level in a classification system is
called a
called a
Anonymous Quiz
82%
Taxon
14%
Species
4%
Genus
1%
Phylum
Need for a proper system of classification arises
Anonymous Quiz
0%
The organisms of the past cannot be studied without it.
26%
Classification helps in knowing the relationships among the different groups of organisms.
6%
It is not possible to study all the living organisms.
68%
All of these
Asexual production takes place in fungi with the help of
Anonymous Quiz
67%
Zoospores, sporangiospores and conidia
18%
Ascospores, basidiospores and zoospores
6%
Zoospores, oospores and basidiospores
9%
Oospores, ascospores and basidiospores
In general viruses that infect plant generally have
Anonymous Quiz
70%
ss RNA
18%
ds RNA
8%
ds DNA
4%
ss DNA
Grignard's reagent reacts with ethanal (acetaldehyde) and propanone to give
Anonymous Quiz
7%
Higher aldehydes with ethanal and higher ketones with propanone
33%
Primary alcohols with ethanal and secondary alcohols with propanone
10%
Ethers with ethanal and alcohols with propanone
50%
Secondary alcohols with ethanal and tertiary alcohols with propanone
Phenyl isocyanides are prepared from which of the following reactions
Anonymous Quiz
6%
Rosenmund's reaction
80%
Carbylamine reaction
12%
Reimer-Tiemann reaction
2%
Wurtz reaction
Amine that cannot be prepared by Gabrielphthalimide synthesis is
Anonymous Quiz
16%
Benzyl amine
56%
Aniline
12%
Methyl amine
17%
Iso-butylamine
Which statement is not correct
Anonymous Quiz
6%
Amines form hydrogen bond
18%
Ethyl amine has higher boiling point than propane
14%
Methyl amine is more basic than ammonia
62%
Dimethyl amine is less basic than methyl amine
The reduction of which of the following compound would yield secondary amine
Anonymous Quiz
18%
Alkyl nitrile
48%
Carbylamine
7%
Primary amine
27%
Secondary nitro compound
The thallus like body of slime mould is called
Anonymous Quiz
58%
Plasmodium
5%
Leishmania
30%
Fruiting body
8%
Hyphae
Which one of the following is TRUE for dinoflagellates?
Anonymous Quiz
6%
They are mostly heterotrophic
10%
They have a proteinaceous pellicle.
12%
They form an aggregation called plasmodium.
72%
One of the two flagella lies transversely in a furrow between the cellulosic
The plant body of algae is divided into holdfast, stipe and fronds in?
Anonymous Quiz
3%
Chara
58%
Laminaria
7%
Porphyra
32%
All of these