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
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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
