Algebra MCQs Test 07

1. If aN={ax|x∈ N} then 3N∩5N=

2. A group G is abelian then

3. 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

4. The symmetries of square form a

5. In 

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

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

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

9. Which of the following is the representation of 

10. The number of subgroups of a group is