disputed questions:-
1. AI
2. blockchain
3. current account wala- as right now it is merchandise trade surplus and current account surplus
4. biochar (may or may not, in prelims 2015 ans key, a similar statement was there in a question which said it promotes growth of microorganism, upsc kept it incorrect)
5. gene one (keys differ, 2,3 can be right right as per Target UPSC of sudershan lodha)
6. non financial debt
7. price of rice
8. 1991 eco lib (if anyone finds the exact ans please do tell)
There are disputed questions, lets see what upsc will do. Till then assume that you are in the safe zone aur mains prep shuru krte hai.
This time it is very difficult to trust answ keys especially for questions on blockchain, AI, non financial debt, gene, govt trading. One cannot simply assume science tech hai so all remaining correct after elimination.
What ever score you are getting through keys, real score will be either high or low.
AI answer is simply not all. Just check out the songs made by AI on youtube and see people's comment ,you will definitely find it has no meaning.
Gene question I marked 2 and 3 thinking, how can changes be introduced in ovary or testes in a human body. Though changes can be introduced in eggs and sperm. I am still not able to get proper answer of this.
Blockchain question - permissioned blockchain is there, and even if lets say a bank want to utlize blockchain technology, wont it take permission from anyone? so ans can be 1 only.
Is government trading and oms same? i marked government trading wrong.
again tbill, marked only 3)