Chemistry-
General
Easy
Question
When concentrated 
is added to dry 
, brown fumes evolve. These fumes are
The correct answer is:
Related Questions to study
chemistry-
The metal that does not give the borax bead test is
The metal that does not give the borax bead test is
chemistry-General
chemistry-
Which one of the following metals will give blue ash when its salt is heated with 
solid and 
on a charcoal piece
Which one of the following metals will give blue ash when its salt is heated with solid and on a charcoal piece
chemistry-General
physics-
An electron in the ground state of hydrogen atom is revolving in anticlockwise direction in the circular orbit of radius R The atom is placed in a uniform magnetic induction B such that the plane normal of electron orbit makes an angle 300 with B, as shown in figure The torque experienced by electron will be
An electron in the ground state of hydrogen atom is revolving in anticlockwise direction in the circular orbit of radius R The atom is placed in a uniform magnetic induction B such that the plane normal of electron orbit makes an angle 300 with B, as shown in figure The torque experienced by electron will be
physics-General
physics-
In hydrogen atom, the area enclosed by nth orbit is An The graph between 
and logn will be
In hydrogen atom, the area enclosed by nth orbit is An The graph between and logn will be
physics-General
physics-
In hydrogen atom, the radius of nth Bohr orbit is Vn The graph between 
and 
will be
In hydrogen atom, the radius of nth Bohr orbit is Vn The graph between and will be
physics-General
physics-
In a Bohr atom the electron is replaced by a particle of mass 150 times the mass of the electron and the same charge If a0 is the radius of the first Bohr orbit of the orbital atom, then that of the new atom will be
In a Bohr atom the electron is replaced by a particle of mass 150 times the mass of the electron and the same charge If a0 is the radius of the first Bohr orbit of the orbital atom, then that of the new atom will be
physics-General
physics-
The figure shows energy levels of a certain atom, when the system moves from level 2E is emitted The to E, a photon of wavelength wavelength of photon produced during its transition from level 4/3 E to E level is:
The figure shows energy levels of a certain atom, when the system moves from level 2E is emitted The to E, a photon of wavelength wavelength of photon produced during its transition from level 4/3 E to E level is:
physics-General
physics-
The ionisation energy of 
atom in ground state is :
The ionisation energy of atom in ground state is :
physics-General
physics-
A cylindrical solid of length L and radius a is having varying resistivity given by r = r0 x where r0 is a positive constant and x is measured from left end of solid. The cell shown in the figure is having emf V and negligible internal resistance. The electric field as a function of x is best described by :
A cylindrical solid of length L and radius a is having varying resistivity given by r = r0 x where r0 is a positive constant and x is measured from left end of solid. The cell shown in the figure is having emf V and negligible internal resistance. The electric field as a function of x is best described by :
physics-General
physics-
A charged oil drop falls with terminal velocity V0 in the absence of electric field An electric field E keeps it stationary The drop acquires additional charge q and starts moving upwards with velocity V0 The initial charge on the drop was
A charged oil drop falls with terminal velocity V0 in the absence of electric field An electric field E keeps it stationary The drop acquires additional charge q and starts moving upwards with velocity V0 The initial charge on the drop was
physics-General
maths-
if 
find the value of x in given figure.
if find the value of x in given figure.
maths-General
maths-
The number of positive integral solutions of the inequation 
is –
The number of positive integral solutions of the inequation is –
maths-General
maths-
Set of values of x satisfying the inequality 
is 
then 2a + b + c is equal to
Set of values of x satisfying the inequality is then 2a + b + c is equal to
maths-General
maths-
Number of integral values of x for which the inequality log10 
0 holds true, is
Number of integral values of x for which the inequality log10 0 holds true, is
maths-General
maths-
implies
implies
maths-General
