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
The reduction of which of the following compound would yield secondary amine
Anonymous Quiz
10%
The reduction of which of the following compound would yield secondary amine
32%
The lone pair of electrons on the nitrogen atom in aniline is delocalized
34%
The lone pair of electrons on the nitrogen atom in aniline is not involved in resonance
24%
Benzylamine has a higher molecular mass than aniline
Nitration of aniline also gives m-nitro aniline, in strong acidic medium because
Anonymous Quiz
20%
In electrophilic substitution reaction amino group is meta directive
9%
Inspite of substituents nitro group always goes to m- position
25%
In strong acidic medium, nitration of aniline is a nucleophilic substitution reaction
46%
In strong acidic medium aniline present as anilinium ion
Primary, secondary and tertiary amines can be distinguished by
Anonymous Quiz
10%
Schiff's test
12%
Fehling's test
8%
Tollen's test
70%
Hinsberg test
In thermodynamics which one of the following is not an intensive property
Anonymous Quiz
10%
Pressure
25%
Density
47%
Volume
18%
Temperature
“The resultant heat change in a reaction is the same whether it takes place in one or several
stages." This statement is called
stages." This statement is called
Anonymous Quiz
10%
Lavoisier and Laplace law
74%
Hess's law
7%
Joule's law
10%
Le-chatelier's principle