#Q8 R= {0 ,2 ,4 ,6 ,8} ring with addition modulo 10 and multiplication modulo 10. Then unity of R is

#Q9 R= {a+ √p b ; p-prime,a &b ∈R} with ordinary addition and ordinary multiplication. Then unity of R is

#Q10 Let R=(P(N),∆ ,∪ ) be the set, then R will be

#Q1 Let R=(P(N),∆ ,∩ ) then the zero element of R will be

#Q2 R=(P(N),∆ ,∩ ) be the ring, then the unity of R is

#Q3 Unity of the zero ring for ( R ,+ ,∙ ) is

#Q4 Let R be a commutative ring and a ,b are nilpotent element of R then

#Q5 Let a be a nilpotent element of index “r” in R Then 1-a is

#Q6 Characteristic of a non-zero Boolean ring is

#Q7 '6 ' is the nilpotent element of Z_12 is of Index

#Q8 Units in ring (Z_6 ,+_6 ,×_6 ) are

#Q9 Let ∪(R) be the set of units in R and Z(R) be the set of units in zero divisor. And R be Ring with unity, then

#Q10 Let (Z ,* ,∙ ) be the ring and a *b=a+b and a∙b=a+b-ab. Then unity of (Z ,* ,∙ ) is

#Q1 List of zero divisors of Z_(m ) is

#Q2 Number of zero divisors in ( Z_20 ,+_20 ,×_20 ) is

#Q3 Number of units in ( Z_14 ,+_14 ,×_14 ) is

#Q4 Characteristic of Boolean ring R will be

#Q5 Let R be an integral domain then