Ma'am I have a doubt .. Can you please tell me the lowest oxidation state of aluminium .. as far i know the max o.s of Al is +3 .. and some more elements like Cr Mn iron etc etc .
Al has only Al3+, it belongs to p block, n its on the upper side of its group, so it has only one stable 3+ os. Whereas Cr and Mn belong to d block, so they have d orbitals, hence more than 1 os. Mn has +2 to +7 os depending upon the compounds it is forming with other elements, and Cr has +3 which is most stable, other +6 us common one apart from +1,+2, +4. +5. D blick and f block show multiple os ciz of electrons present in n-1, n, n-2 shells which are quite close in energies and can be utilised in bonding Fe shows+2 and +3, Cu shows +1, +2
@@chemistryscholars5060 but ma'am in free state these will show 0 as o.n .? So like Mn you said +2 to +7 . But in free state it has 0 ? So 2 is minimum or zero ?
@@SomewhereLost elements very rarly exist in free state, one eg is gold, it is in free state as it is very stable, bt other metals alws exits in their salts , eg Na will never be in Na state it exits as its salts like nacl, na2so4... Most of the metals exits in their oxides, or sulphides, or pyrites states, thts why we extract metals from their ores
Ma'am on corrosion
Sure.. I will post the video soon
Carbon and its compouns
Atomic structure
Language of Chemistry
Chemical reaction
Yes thanks for the topics, i will make these one by one
Email me exactly wt u want to learn
As per your request i have uploaded the video on Allotropes of Carbon. Do watch and comment. Your feedback is important. Thanku
Ma'am I have a doubt ..
Can you please tell me the lowest oxidation state of aluminium .. as far i know the max o.s of Al is +3 .. and some more elements like Cr Mn iron etc etc .
Al has only Al3+, it belongs to p block, n its on the upper side of its group, so it has only one stable 3+ os. Whereas Cr and Mn belong to d block, so they have d orbitals, hence more than 1 os. Mn has +2 to +7 os depending upon the compounds it is forming with other elements, and Cr has +3 which is most stable, other +6 us common one apart from +1,+2, +4.
+5. D blick and f block show multiple os ciz of electrons present in n-1, n, n-2 shells which are quite close in energies and can be utilised in bonding
Fe shows+2 and +3, Cu shows +1, +2
@@chemistryscholars5060 but ma'am in free state these will show 0 as o.n .? So like Mn you said +2 to +7 . But in free state it has 0 ? So 2 is minimum or zero ?
@@SomewhereLost elements very rarly exist in free state, one eg is gold, it is in free state as it is very stable, bt other metals alws exits in their salts , eg Na will never be in Na state it exits as its salts like nacl, na2so4... Most of the metals exits in their oxides, or sulphides, or pyrites states, thts why we extract metals from their ores
@@chemistryscholars5060 ohh okayy ma'am thanks for clearing my doubt 🌟🌟