Advertisements
Advertisements
प्रश्न
State the reasons for use of diamond as an item of jewellery.
उत्तर
Use of diamond – as an item of jewellery as – diamond has sparkling brilliance due to high refractive index is cut and polished.
APPEARS IN
संबंधित प्रश्न
Write true or false
Diamond is insoluble in all solvents.
Choose the correct alternative
Anthracite is
Descirbe the formation of coal
TRUE \ FALSE
Buckyball is a yellow amorphous solid.
TRUE \ FALSE
Pure diamond can occur in several colours.
With reference to the structure of the two crystalline allotropes of carbon, state why diamond is inert or unreactive while graphite is comparably more reactive.
‘Wood charcoal – an amorphous aliotrope of carbon reduces heated metallic oxides to metals.’ Give a balanced equation to support the statement.
Name the following:
An allotrope of carbon used for the manufacture of coke.
Complete the statement by filling the blank with the correct word from the option.
A graphite-clay mixture baked at high temperature is used in making ______.
Give reason for the following:
Diamond & graphite are allotropic modifications of carbon.
