Algebra mcqs Test 09

1. The symmetries of square form a

2. If aN={ax|x∈ N} then 3N∩5N=

3. A group G is abelian then

4. In 

5. Let H,K be the two subgroups of a group G. Then set HK={hk|h∈H ^ k∈ K} is a subgroup of G if

6. which binary operation is not defined in the set of natural number

7. Which of the following is the representation of 

8. The number of subgroups of a group is

9. Let G be a group of order 36 and let a belongs to G . The order of a is

10. A mapping  is called homorphism if a, b belongs to G