Solid State Tes...

Which of the following molecule has higher lattice energy?

A nugget of gold and quartz was found to contain x g of gold and y g of quartz and has density d if the densities of gold and quartz are $$d_{1}$$ and $$d_{2}$$ respectively then the correct relation is :

The distance between $$Na^+$$ and $$Cl^-$$ ions in $$NaCl$$ with a density $$3.165$$ g $$cm^{-3}$$ is:

In the cubic close packing, this unit cell has:

The density of metal which crystallise in $$bcc$$ lattice with unit cell edge length $$300$$ pm and molar mass $$50$$ g mol$$^{-1}$$ will be:

An element with atomic mass 100 has a $$bcc$$ structure and edge length 400 pm. The density of element is:

Which of the following points defects are shown by $$AgBr_{(s)}$$ crystals?
(I) Schottky defect 
(II) Frenkel defect 
(III) Metal defect
(IV) Metal deficiency defect

Match the types of packing given in column I with the items given in column II.

Match the defects given in column I with statements given in column II and mark the appropriate choice.

Experimentally it was found that a metal oxide has formula $$M_{0.98}O.$$ Metal $$M$$, is present as $$M^{2+}$$ and $$M^{3+}$$ in its oxide. Fraction of the metal which exists as $$M^{3+}$$ would be: