How many of the following statements are correct regarding allotropes of carbon
Graphite is not a good conductor of electricity in the perpendicular direction of layers at ordinary temperatures.
Coke is an impure form of carbon.
Anthracite is the purest form of carbon.
Buckminster fullerene contains five-membered rings and six-membered rings.
Diamond is a good conductor of heat.
Graphite is diamagnetic in nature.
Graphite is thermodynamically more stable than diamond.
Important Questions on The p-Block Elements
Consider a prototypical fullerene, .
Let Number of -membered rings
Number of -membered rings
Number of -bonds in
Find the value of
How many of the given statements are true for potash Alum.
It is a white crystalline solid
It swells up on heating
It imparts a golden yellow colour to the bunsen flame
An aqueous solution of the above gives a white precipitate with solution soluble only concentrated sulphuric acid.
Select the correct statement(s).
