Chemistry-
General
Easy
Question
Primary amine on treatment with 
yields:
- Nitro compound
- Ammonia
- Secondary alcohol
- Primary alcohol
The correct answer is: Primary alcohol
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Alcoholic beverages contain
Alcoholic beverages contain
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Product is
Product is
chemistry-General
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Ethyl iodide on treatment with dry 
will yield:
Ethyl iodide on treatment with dry will yield:
chemistry-General
maths-
If X is a square matrix of order 3 × 3 and 
is a scalar, then adj (
is equal to
If X is a square matrix of order 3 × 3 and is a scalar, then adj ( is equal to
maths-General
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Phenol 
forms a tribromo derivative “X ” is
Phenol forms a tribromo derivative “X ” is
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The effective focal length of the lens combination shown in figure is - 60 cm The radii of curvature of the curved surfaces of the plano-convex lenses are 12 cm each and refractive index of the material of the lens is 1.5 The refractive index of the liquid is
The effective focal length of the lens combination shown in figure is - 60 cm The radii of curvature of the curved surfaces of the plano-convex lenses are 12 cm each and refractive index of the material of the lens is 1.5 The refractive index of the liquid is
physics-General
physics-
A ray of ligth enters into a glass slab from air as shown .If refractive of glass slab is given by 
where A and B are constants and ‘t’ is the thickness of slab measured from the top surface Find the maximum depth travelled by ray in the slab Assume thickness of slab to be sufficiently large
A ray of ligth enters into a glass slab from air as shown .If refractive of glass slab is given by where A and B are constants and ‘t’ is the thickness of slab measured from the top surface Find the maximum depth travelled by ray in the slab Assume thickness of slab to be sufficiently large
physics-General
physics-
The refraction index of an anisotropic medium varies as 
A ray of light is incident at the origin just along y-axis (shown in figure) Find the equation of ray in the medium
The refraction index of an anisotropic medium varies as A ray of light is incident at the origin just along y-axis (shown in figure) Find the equation of ray in the medium
physics-General
physics-
Due to a vertical temperature gradient in the atmosphere, the index of refraction varies Suppose index of refraction varies as 
is the index of refraction at the surface and a 
A person of height h = 2.0 m stands on a level surface Beyond what distance will he not see the runway?
Due to a vertical temperature gradient in the atmosphere, the index of refraction varies Suppose index of refraction varies as is the index of refraction at the surface and a A person of height h = 2.0 m stands on a level surface Beyond what distance will he not see the runway?
physics-General
physics-
Find the variation of refractive index assuming it to be a function of y such that a ray entering origin at grazing incidence follows a parabolic path y = x2 as shown in fig
Find the variation of refractive index assuming it to be a function of y such that a ray entering origin at grazing incidence follows a parabolic path y = x2 as shown in fig
physics-General
chemistry-
Metal oxides which decomposes on heating is
Metal oxides which decomposes on heating is
chemistry-General
chemistry-
One mole of an organic compound A with the formula 
reacts completely with two moles of HI to form X and Y. When Y is boiled with aqueous alkali it forms Z. Z answers the iodoform test. The compound A is
One mole of an organic compound A with the formula reacts completely with two moles of HI to form X and Y. When Y is boiled with aqueous alkali it forms Z. Z answers the iodoform test. The compound A is
chemistry-General
physics-
A reflecting surface is represented by the equation 
A ray travelling in negative x-direction is directed towards positive y-direction after reflection from the surface at point P Then co-ordinates of point P are
A reflecting surface is represented by the equation A ray travelling in negative x-direction is directed towards positive y-direction after reflection from the surface at point P Then co-ordinates of point P are
physics-General
physics-
A bird in air is diving vertically over a tank with speed 5cm/s Base of the tank is silvered A fish in the tank is rising upward along the same line with speed 2cm/s Water level is falling at a rate of 2cm/s 
Speed of the image of bird relative to the fish looking upward in cm/s is
A bird in air is diving vertically over a tank with speed 5cm/s Base of the tank is silvered A fish in the tank is rising upward along the same line with speed 2cm/s Water level is falling at a rate of 2cm/s Speed of the image of bird relative to the fish looking upward in cm/s is
physics-General
physics-
A bird in air is diving vertically over a tank with speed 5cm/s Base of the tank is silvered A fish in the tank is rising upward along the same line with speed 2cm/s Water level is falling at a rate of 2cm/s Speed of the image of fish formed after reflection in the mirror as seen by the bird in cm/s
A bird in air is diving vertically over a tank with speed 5cm/s Base of the tank is silvered A fish in the tank is rising upward along the same line with speed 2cm/s Water level is falling at a rate of 2cm/s Speed of the image of fish formed after reflection in the mirror as seen by the bird in cm/s
physics-General
