Question

रासायनिक सूत्र लिखो- मैंग्नीसियम क्लोराइड, सोडियम सल्फेट।​

Answer 1

Answer:

Explanation:

So, the cyclicity of 3 has 4 different numbers 3, 9, 7, 1. 7 and 8 follow similar logic. So these four digits i.e. 2, 3, 7 and 8 have a unit digit cyclicity of four steps.