A relation which contains no element is called a ___.

Which set of elements is called chalcogens ?

A set containing a single element is called……………

A set containing exactly one element is called the ................. set.

A set contains (2n+1) elements. If the number of subsets of this set which contain atmost n elements is 4096, then n is

A set contains (2n+1) elements.If the number of subsets of this set which contain atmost n elements is 4096, then n is

Parenchyma which contains chlorophyll is called: