How do I cover inorganic chemistry: NCERT lines, exceptions and periodic trends, without drowning?
Be vs B, N vs O, Cl vs F, inert pair effect. A way to organise inorganic so it stays in memory.
Commons Community Team
12 Oct 2026 Β· 1 min read
A lot of you ask this, and the tone is usually a little desperate. Inorganic Chemistry has no single method to deduce everything: it is trends, exceptions and statements lifted from NCERT, and it spreads over periodicity, the p-block, d- and f-block and coordination compounds.
Students tell us they read a section, feel fine, and two weeks later cannot say why the first ionisation enthalpy of Be is higher than that of B, or why Cl has a more negative electron gain enthalpy than F.
How do you organise and revise inorganic so it sticks? Tell us your system, and which parts you found easiest to keep.
6 answers & replies
Sign in to join the conversation.
[+][β]Commons Chemistry DeskTeamΒ· 7d ago
Inorganic rewards a group-wise sheet: one page per group, with four boxes: trend, exceptions, reactions, compounds named in NCERT. Start with periodic trends, since they explain half the exceptions.
Exceptions worth owning:
- Ionisation enthalpy: Be > B and N > O. A filled 2s and a half-filled 2p are extra stable compared with their neighbours.
- Electron gain enthalpy: Cl is more negative than F. In the very compact 2p shell of F, inter-electronic repulsion is strong.
- Inert pair effect: in the lower members of Group 13 and 14, Tl prefers +1 and Pb prefers +2 over the higher states.
- Hydrohalic acids in water: HF < HCl < HBr < HI, following the weakening H-X bond.
The first element of each p-block group differs from the rest (small size, no d orbitals, high electronegativity), and NCERT says so explicitly. Give "anomalous behaviour of the first element" its own box.
Check the current NTA syllabus for which inorganic units are included before building sheets.
[+][β]Commons Biology DeskTeamΒ· 7d ago
A habit from Biology transfers well: turn NCERT lines into questions. Read a paragraph, then convert every bold term and every sentence containing a comparison, a number or the words "only", "unlike" or "except" into a question with a hidden answer.
Example from the p-block: the text explains that nitrogen differs from the rest of its group because of its small size, high electronegativity and lack of d orbitals. A question card: "Why does nitrogen form N with a triple bond, while phosphorus exists as P?" The answer is that small N atoms overlap effectively side-on to form bonds, which the larger P atoms cannot do well.
First pass is slow; the second, a week later, is much faster. Those same trigger words are what exam statements are built on, in Biology and Chemistry alike.
[+][β]Commons Strategy DeskTeamΒ· 7d ago
Do a little inorganic every day instead of a block. A practical split: 20 to 30 minutes at the start of each study day on one group, with a spaced review of earlier groups (next day, three days, a week, three weeks). It spreads the load and uses memory the way memory actually works.
A caveat: if you are very short of time, daily drip-feed will not reach everything. In that case go for breadth first. Cover the groups that NCERT treats in the most detail, learn their trends and exceptions, and accept that rare compounds can wait.
Inorganic also pairs with practice. After each group, attempt PYQs on it the same day, so the lines you just read are tested while they are fresh.
[+][β]Commons Mock & PYQ DeskTeamΒ· 7d ago
Once a group is done, test it with statement-type PYQs ("which of the following is correct?"). They expose exceptions fast. Log each wrong statement along with the NCERT line that contradicts it.
[+][β]Commons Dropper DeskTeamΒ· 7d ago
A pattern we see in drop years: inorganic gets labelled "just memory" and put off. By the time it gets attention, it is a rush.
Use the extra months to your advantage. Build the group sheets early, set a fixed revision rhythm, and test recall every week by writing a group page blind. Use your previous paper as a diagnostic: for each inorganic question you missed, were you unaware of the line, or did you read it and forget it? Those two causes need different fixes (first reading, then spaced retrieval).
Rereading the same NCERT text over and over feels safe but proves little. Retrieval, even when it is painful, is the honest score.
Which approach kept inorganic alive in your memory? Share it below.
[+][β]Commons Wellbeing DeskTeamΒ· 7d ago
Pure-memory topics can feel endless and a little pointless, which is draining in itself. Split the work into small, finishable pieces (one group, one page) and tick each off. Visible progress is a legitimate motivator.
Sleep matters most for this kind of material, since memory is consolidated overnight. A fixed bedtime is a study tool here, not a luxury.
On days when the list feels hopeless, shrink the target: one group, ten lines, one test at the end. Finishing something small keeps the habit alive, and the habit is what carries you through the chapters that are less friendly. If worry about the whole syllabus keeps you awake, say so to someone at home; it is more common than most students think.
