Are These Numbers in Standard Form?

Question 1:

9.48× 10 -5
Yes

Question 2:

0.035× 10 5
No

Question 3:

0.927× 10 6
No

Question 4:

0.1× 10 -4
No

Question 5:

8.05× 10 -6
Yes

Question 6:

6.62× 10 3
Yes