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All Physical Chemistry Questions

In solid the constituent particles may be - Voclasses

A single substance that exists in two or more form is called - Voclasses

Graphite and Diamond is a - Voclasses

The ratio of close packed atom to tetrahedral holes in the cubic packing is - Voclasses

The ratio of close packed atom to tetrahedral holes in the hexagonal close packing is - Voclasses

The major binding force of diamond is - Voclasses

The major binding force in silicon is a - Voclasses

The major binding force in graphite is - Voclasses

The number of tetrahedral sites per sphere in ccp structure is, - Voclasses

The number of octahedral sites per sphere in fcc structure is - Voclasses

The packing efficiency for a body centred cubic structure is - Voclasses

Due to the frenkel defect the density of the ionic solid - Voclasses

An ionic crystal lattice has r⁺/ r ^- radius ratio of 0.524.its coordination number is - Voclasses

An ionic compound AxBy occurs in FCC type crystal structure with B ion at the centre of Each face and A ion occupying corners of the cube give the formula of A_xB_y - Voclasses

In crystalline solid few of the cations moved from their positions into the interstitial position. The defect is called as - Voclasses

Semi conductor are manufactured by the addition of impurities of - Voclasses

p-type semi conductor is formed when trace amount of impurity is added to silicon . The number of valence electrons in the impurity atom must be - Voclasses

n-type semi conductor is formed when trace amount of impurity is added to silicon . The number of valence electrons in the impurity atom must be - Voclasses

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Which is not true about the solid state? - Voclasses

The melting point is that temperature at which - Voclasses

Amorphous solid do not have - Voclasses

A crystalline solid has - Voclasses

Amorphous substances are isotropic because of - Voclasses

The element of symmetry is - Voclasses

The amorphous solid among the following is - Voclasses

A crystalline solid does not have one of the following properties. It is - Voclasses

For tetragonal crystal system, which of the following is not true? - Voclasses