Molecules/ions and their magnetic properties are given below
Assertion : All molecules in a gas have same speed.
Reason : Gas contains of different size and shape
A pure crystalline substance, on being heated gradually, first forms a turbid looking liquid and then the turbidity completely dis..
The characteristic features of solid are
The root mean square speeds at STP for the gases H2 , N2 ,O2 and HBr are in the order
Which one of the following is good conductor of electricity
Davy and Faraday proved that
At constant temperature,in a given mass of an ideal gas
A compound is formed by elements A and B. This crystallises in the cubic structure where the A atoms are at the corners of the cub..
The 8 : 8 type of packing is present in
A crystalline solid have
A solid compound contains X , Y and Z atoms in a cubic lattice with X atom occupying the corners. Y atoms in the body centred posi..
The temperature and pressure at which ice, liquid water and water vapour can exist together are
Which of the following relations for expressing volume of a sample is not correct
In a cubic structure of diamond which is made from X and Y, where X atoms are at the corners of the cube and Y at the face centres..
Dulong and Petits law is valid only for
If the pressure and absolute temperature of 2 litres of CO2 are doubled, the volume of CO2 would become
Which one of the following metal oxides is antiferromagnetic in nature
For orthombic system axial ratios are a#b#c and the axial angles are
Quartz is are crystalline variety of
A crystalline solid
Pressure remaining the same, the volume of a given mass of an ideal gas increases for every degree centigrade rise in temperature ..
The number of carbon atoms per unit cell of diamond is
In the solid state, MgO has the same structure as that of sodium chloride. The number of oxygens surrounding each magnesium in MgO..
The ability of a given substance to assume two or more crystalline structure is called
Pressure of a gas in a vessel can be measured by
Crystalline solids are
A volume of 1 m3 is equal to
With which one of the following elements silicon should be doped so as to give p-type of semiconductor
The substance which does not show sharp melting point is
Among solids the highest melting point is established by
Which of the following statements is wrong for gases
Which of the following is ferroelectric compound
The lustre of a metal is due to
Correct gas equation is
Which type of solid crystals will conduct heat and electricity
Kinetic energy of molecules is highest in
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
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