Let and be the roots of equation
is equal to:
6
-6
3
-3
Compound X will be
Find the compound "X" which give the following test:
Neutral FeCl3 -Ve
Fehling Solution -ve
Iodoform reaction +ve
Grignard reagent +ve
Two particles move at right angle to each other de Broglie wavelengths as and , particle suffers a perfectly inelastic collision. The de Broglie wavelength of final particle is given by
option 3
An interference experiment ratio of amplitude of coherent waves is . What is the ratio of maximum and minimum intensities of frings?
1
2
3
4
What is time at which the rate of dissipation is equal to the rate at which magnetic energy stored in the inductor?
1.4 sec
1.9 sec
5 sec
0.03 sec
option 3
Plane electromagnetic wave travelled in x-direction has electric field component E = 6V/m which is in y-direction. Corresponding Magnetic field component (B) is-
Bob at pendulum mass 2g, charge , an electric field of intensity 2000v/m. Angle of pendulum with vertical at equilibrium?
Consider a Steel wire of radius= 2mm of a load equal to 4 kg to be suspended from a rigid support and its top end, such that it is in hanging in a vertical position. What is its tensile stress due to its own weight? (take )
If gas molecules each of mass Kg collide over the area of in unit second with Speed , the pressure exerted will be?
In SI units, the dimension of is
The major product formed in the reaction given below will be:
If in a parallelogram ABDC, the coordinates of A,B and C are respectively (1,2), (3,4) and (2,5) , then the equation of the diagonal AD is:
50 mL of 0.5 M oxalic acid is needed to neutralize 25 mL of sodium hydroxide solution. The amount of in 50 mL of the given sodium hydroxide solution is :
20 g
4 g
10 g
40 g
Match the catalysts (Column I) with products (Column II).
Column Column
Catalyst Product
The increasing order of nucleophilicity of the following nucleophilies is :
The correct option among the following is :
Colloidal medicines are more effective because they have small surface area.
Addition of alum to water makes it unfit for drinking .
Colloidal particles in lyophobic sols can be precipitated by electrophoresis.
Brownian motion in colloidal solution is faster if the viscosity of the solution is very high.
Benzene diazonium chloride on reaction with aniline in the presence of dilute hydrochloric acid gives:
The metal that gives hydrogen gas upon treatment with both acid as well as base is :
zinc
iron
mercury
magnesium
The major product of the following reaction is