Assertion : All molecules in a gas have same speed.
Reason : Gas contains of different size and shape
Assertion : 4.58mm and 0.0098Â°C is known to be triple point of water.
Reason : At this pressure and temperature all the three s..
Davy and Faraday proved that
Assertion : We air is heavier than dry air.
Reason : The density of a dry air is more than density of water.
Molecules/ions and their magnetic properties are given below
Which one of the following Statements is not correct about the three states of matter i.e. solid, liquid and gaseous
At constant temperature,in a given mass of an ideal gas
Dulong and Petits law is valid only for
A pure crystalline substance, on being heated gradually, first forms a turbid looking liquid and then the turbidity completely dis..
If the pressure and absolute temperature of 2 litres of CO2 are doubled, the volume of CO2 would become
Quartz is are crystalline variety of
A crystalline solid
Pressure of a gas in a vessel can be measured by
which one of the following statements is not true about the
Which one of the following metal oxides is antiferromagnetic in nature
Which of the following relations for expressing volume of a sample is not correct
Pressure remaining the same, the volume of a given mass of an ideal gas increases for every degree centigrade rise in temperature ..
A crystalline solid have
Kinetic energy of molecules is highest in
The temperature and pressure at which ice, liquid water and water vapour can exist together are
A volume of 1 m3 is equal to
The ability of a given substance to assume two or more crystalline structure is called
Among solids the highest melting point is established by
The number of carbon atoms per unit cell of diamond is
Which of the following is ferroelectric compound
The substance which does not show sharp melting point is
Correct gas equation is
To get a n-type semiconductor, the impurity to be added to silicon should have which of the following number of valence electrons ..
Which of the following is true about gaseous state
With which one of the following elements silicon should be doped so as to give p-type of semiconductor
Which type of solid crystals will conduct heat and electricity
Which of the following statements is wrong for gases
If P, V, M, T, and R are pressure, volume, molar mass, temperature and gas constant respectively, then for an ideal gas, the dens..
The lustre of a metal is due to
Diamond is an example of
Which of the following exhibits the weakest intermolecular forces
Crystalline solids are
The solid NaCL is a bad conductor of electricity since
One atmosphere is numerically equal to approximately
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