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questions
List of practice Questions
Alkali metals are not found in free state due to their highly reactive nature. This is due to
Chemistry
GROUP 1 ELEMENTS
Aldehydes other than formaldehyde react with Grignard reagent to give addition products which on hydrolysis give
Chemistry
Aldehydes, Ketones and Carboxylic Acids
Aldol condensation will not be observed in
Chemistry
Aldehydes, Ketones and Carboxylic Acids
Aleuroplasts, amyloplasts and elaioplasts
Biology
Cell: the unit of life
Alfred Wallace worked in
Biology
evolution
Alcohol fermentation is brought about by the action of
Chemistry
Alcohols, Phenols and Ethers
Alcohols of low molecular weight are
Chemistry
Alcohols, Phenols and Ethers
Alcohols reacts with Grignard reagent to form
Chemistry
Alcohols, Phenols and Ethers
Aldehydes can be distinguished from ketones byusing
Chemistry
Aldehydes, Ketones and Carboxylic Acids
Air pollution is not caused by
Chemistry
Environmental Chemistry
$AlCl_3$
is a
Chemistry
p -Block Elements
$AlCl_3$
is covalent while
$AlF_3$
is ionic. This fact can be justified on the basis of
Chemistry
Chemical bonding and molecular structure
$ {AlCl3}$
on hydrolysis gives
Chemistry
p -Block Elements
Air bladder is present in
Biology
Kingdom Animalia
Air has refractive index 1.0003. The thickness of air column which will have one more wavelength of yellow light (600 nm) than in the same thickness of vacuum is:
Physics
Ray optics and optical instruments
Air inside a closed container is saturated with water vapour. The air pressure is p and the saturated vapour pressure of water is
$\overline{p}$
. If the mixture is compressed to one-half of its volume by maintaining temperature constant, the pressure becomes
Physics
kinetic theory
Air layering is performed in case of
Biology
Reproduction in Organisms
Agrochemical based agriculture includes
Biology
Applications of Biotechnology
$AIDS$
is widely diagnosed by
Biology
human health and disease
AgCl precipitate dissolves in
$NH_4OH$
due to the formation of
Chemistry
d -and f -Block Elements
$ {AgNO_3}$
does not give precipitate with
$ {CHCl_3}$
because
Chemistry
Haloalkanes and Haloarenes
After simplification, what is the number of terms in the expansion of
$[(3x + y)^5]^4 - [(3x-y)^4]^5$
?
Mathematics
Binomial theorem
$ {Ag+ + NH3 <=> [Ag(NH3)]+;}$
$k_1 = 6.8 \times 10^{-3}$
$ {[Ag(NH3)]+ + NH3 <=> [Ag(NH3)2]+ ;}$
$k_2 = 1.6 \times 10^{-3}$
then the formation constant of the complex
$[Ag(NH_3)_2]^+$
is
Chemistry
coordination compounds
Silver is removed electrolytically from
$200 \,mL$
of a
$0.1\, N$
solution of
$AgNO _{3}$
by a current of
$0.1\, A$
. How long will it take to remove half of the silver from the solution?
Chemistry
Electrochemistry
Adsorption is an exothermic process. The amount of substance adsorbed
Chemistry
Surface Chemistry
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