Chemistry-
General
Easy
Question
Which pair does not show hydrogen isotopes
- Ortho hydrogen and para hydrogen
- Protium and deuterium
- Deuterium and tritium
- Tritium and protium
The correct answer is: Ortho hydrogen and para hydrogen
Ortho and para hydrogen show different spin in a hydrogen molecule it does not show hydrogen isotopes.
Related Questions to study
chemistry-
Among and
the correct order of acid strength is </span
Among and
the correct order of acid strength is </span
chemistry-General
chemistry-
The following graph illustrates

The following graph illustrates

chemistry-General
physics
64 equal drops of water are falling through air with a steady velocity
, if the drops coalesce, what is their new velocity?
64 equal drops of water are falling through air with a steady velocity
, if the drops coalesce, what is their new velocity?
physicsGeneral
physics
A steel ball of diameter 3.2 mm falls under gravity through an oil of density 920kg
and viscosity 1.64Ns
. The density of steel may be taken as7820kg
What is the terminal velocity of the ball?
A steel ball of diameter 3.2 mm falls under gravity through an oil of density 920kg
and viscosity 1.64Ns
. The density of steel may be taken as7820kg
What is the terminal velocity of the ball?
physicsGeneral
physics
A steel ball of diameter 3 mm falls through glycerine and covers a distance of 25 cm in 10s. The specific gravity of steel and glycerine are 7.8 and 1.26 respectively. The viscosity of glycerine is about......... pa"
A steel ball of diameter 3 mm falls through glycerine and covers a distance of 25 cm in 10s. The specific gravity of steel and glycerine are 7.8 and 1.26 respectively. The viscosity of glycerine is about......... pa"
physicsGeneral
physics
A boat of area floating on the surface of a river is made to move horizontaly with a speed of by applying a tangential force. If the river is deep and the water in contact with the bed is stationary, what is the tangential force needed to keep the boat moving ? (viscosity of water 0.01 poise)
A boat of area floating on the surface of a river is made to move horizontaly with a speed of by applying a tangential force. If the river is deep and the water in contact with the bed is stationary, what is the tangential force needed to keep the boat moving ? (viscosity of water 0.01 poise)
physicsGeneral
Maths-
The slope of the tangent to the curve
at
is
The given curve is y = 6 + x + x2.
We have to find the slope tangent at point (2,4)
To find the slope we differentiate the curve w.r.t x.

Slope m =
m = (1 - 2 × 2)
= 1 - 4
= -3
The slope of the tangent at given point is -3.
We have to find the slope tangent at point (2,4)
To find the slope we differentiate the curve w.r.t x.
Slope m =
m = (1 - 2 × 2)
= 1 - 4
= -3
The slope of the tangent at given point is -3.
The slope of the tangent to the curve
at
is
Maths-General
The given curve is y = 6 + x + x2.
We have to find the slope tangent at point (2,4)
To find the slope we differentiate the curve w.r.t x.

Slope m =
m = (1 - 2 × 2)
= 1 - 4
= -3
The slope of the tangent at given point is -3.
We have to find the slope tangent at point (2,4)
To find the slope we differentiate the curve w.r.t x.
Slope m =
m = (1 - 2 × 2)
= 1 - 4
= -3
The slope of the tangent at given point is -3.
physics
The velocity of a small ball of mass m and density
when dropped in a container filled with glycerine becomes constants after sometime. What is the viscous force acting on the ball? (density of glycerin is
)
The velocity of a small ball of mass m and density
when dropped in a container filled with glycerine becomes constants after sometime. What is the viscous force acting on the ball? (density of glycerin is
)
physicsGeneral
physics
Complete the sentence If the height of a capillary is smaller than the height to which water should rise, then…..
Complete the sentence If the height of a capillary is smaller than the height to which water should rise, then…..
physicsGeneral
physics
By how much depth will the surface of a liquid be depressed in a glass tube of radius 0.2 mm if the angle of contact of the liquid is
and the surface tension is 0.547N
? (Density of the liquid is
)
By how much depth will the surface of a liquid be depressed in a glass tube of radius 0.2 mm if the angle of contact of the liquid is
and the surface tension is 0.547N
? (Density of the liquid is
)
physicsGeneral
physics
A spherical soap bubble of radius 2 cm attached to the outside of a spherical bubble of radius 4 cm . Then what is the radius of the common surface?
A spherical soap bubble of radius 2 cm attached to the outside of a spherical bubble of radius 4 cm . Then what is the radius of the common surface?
physicsGeneral
physics
To w hat height can mercury be filled in a resell without any leakage if there is a pin hole of diameter 0.1 mm at the bottom of the vessel. (Density of mercury
kgm-3, surface tension of mercury -
Angle of contact with the vessel for mercury=
)
To w hat height can mercury be filled in a resell without any leakage if there is a pin hole of diameter 0.1 mm at the bottom of the vessel. (Density of mercury
kgm-3, surface tension of mercury -
Angle of contact with the vessel for mercury=
)
physicsGeneral
physics
amount of energy evolved when eight droplets of mercury ( surface tension 0.55N
) of radius each combine into one drop is .......
amount of energy evolved when eight droplets of mercury ( surface tension 0.55N
) of radius each combine into one drop is .......
physicsGeneral
physics
In a Searle's experiment, the diameter of the wire as measured by a screw gauge of least count 0.1.m, is 110.0 cm, When a weight of 50 N is suspended from the wire, the extension is measured to 0.125 cm by a micrometer of least count 0.001 cmthe maximum error in the measurement of Young's modulus of the material of the wire is....N/m2?
In a Searle's experiment, the diameter of the wire as measured by a screw gauge of least count 0.1.m, is 110.0 cm, When a weight of 50 N is suspended from the wire, the extension is measured to 0.125 cm by a micrometer of least count 0.001 cmthe maximum error in the measurement of Young's modulus of the material of the wire is....N/m2?
physicsGeneral