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C3H9N cannot represent, ...

To convert the following compound into a chiral compound, the attack should be on carbon: *Image* ...

A similarity between optical and geometrical isomerism is that: ...

The stability order of the following compounds is: *Image* ...

In the following structures, which two forms are staggered conformation of ethane? *Image* ...

What is the IUPAC name of the following compound? *Image* ...

What is the IUPAC name of the following compound? *Image* ...

What is the IUPAC name of the following compound? *Image* ...

What is the IUPAC name of the following compound? *Image* ...

A gas (γ=5/3) expands isobarically. The percentage of heat supplied that increases thermal energy and that involved in doing work for expansion ...

A long spring is stretched by 2 cm and the potential energy is U. If the spring is stretched by 10 cm, its potential energy will be ...

The temperature of an ideal gas is increased from 120 K to 480 K. If at 120 K, the root mean square velocity of gas molecules is v, at 480 K it becomes ...

If a proton and an electron have same de-Broglie wavelength, then ...

The photoelectric threshold of Tungsten is 2300 A°. The energy of electron ejected from the surface by ultraviolet light of wavelength 1800 A° is ...

A ray of light passes from vaccum into a medium of refractive index μ, the angle of incidence is found to be twice the angle of refraction. Then the angle of incidence is ...

An object is placed symmetrically between the two plane mirrors inclined at an angle of 30°, then total number of images formed is ...

Focal length of a convex lens of refractive index 1.5 is 2 cm. Focal length of lens when immersed in a liquid of refractive index of 1.25 will be ...

If yellow light emitted by sodium lamp in Young's double slit experiment is replaced by monochromatic blue light of the same intensity ...

The equation of displacement of two waves are given as y1=10sin(3πt+π/3) y2=5(sin3πt+(√3)cos3πt) The ratio of their amplitude is ...

*Image* A conducting square loop of side L and resistance R moves in its plane with a uniform velocity v perpendicular to one of its sides. A magnetic induction B, constant in time and space, pointing perpendicular and into t ...

The time period of a thin bar magnet in earth's magnetic field is T. If the magnet is cut into four equal parts perpendicular to its length, the time period of each part in the same field will be ...

A rectangular loop carrying a current i is situated near a long straight wire such that the wire is parallel to one of the sides of the loop and is in the plane of the loop. If a steady current I is established in the wire th ...

*Image* The resistances given are in Ω Find the equivalent resistance between A and B (in Ω) ...

*Image* A battery of internal resistance 4Ω is connected to the network of resistances as shown. In order to give the maximum power to the network, the value of R (in Ω) should be ...

Two wires of same metal have the same length but their cross sections are in the ratio 3:1. They are joined in series. The resistance of the thicker wire is 10 Ω. The total resistance of the combination is ...

There is an electric field E in the x-direction. If the work done on moving a charge of 0.2 C through a distance of 4 m along a line making an angle 60° with x-axis is 8 J, then E is ...

If charge q is placed at the centre of the line joining two equal charges Q. The system of three charges will be in equilibrium if q is ...

A shell is fired from a cannon with a velocity v at an angle θ with the horizontal direction. At the highest point in its path it explodes into two pieces of equal mass. One of the pieces retraces its path to the cannon and ...

P and Q are two solids with relative densities 0.6 and 0.9 respectively. A and B are two liquids with relative densities 0.75 and 1.0 respectively. P and Q are dipped in A and B then ...

A satellite is in an orbit around the earth. If its kinetic energy is doubled, then ...