What are piezoelectric crystals ? Give their important uses.

What are cyanobacteria? Give their important features.

What are the magnetic lines of force? Give their important properties.

What are metallic crystals ?

Define piezoelectricity.

Which is true about Piezoelectric crystals ?

Give important uses of acetone.

What are point defects in crystals ? Describe the Schottky defects in crystals.

Give two important uses of ethanol.

What are proteins? Name the products obtained during their hydrolysis. What is the effect of heat on these ? Give their importance.