state gov Haryana Police Constable Mock Test 2024 General Science Chemistry Chemical Reaction

What is oxidation number of chromium in the ionic compound Na2Cr2O7 :

1
2
2
6
3
7
4
12
5
Not Attempted
Share: WhatsApp Telegram X

Sponsored

hivanix.in

Visit

This quiz is brought to you by hivanix.in

🌐 Web App Development

Other Tools: chatwiz.hivanix.in mmspace.hivanix.in unogame.hivanix.in

Quick Navigation

Home

Subjects

Chapters