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Practicing real exam questions helps you understand the exam pattern, improve accuracy, and boost your JEE score. Perfect for students aiming for top ranks in IIT-JEE.","tags","jee main joint entrance examination india","version","vip","location",{"_391":392,"_393":394},"type","Point","coordinates",[395,396],79.0888,21.1466,"in","priority",11,"createdOn",1756744302186,"updatedOn","questionsCount",24748,"courseCount",9,"examKey","questionData",{"_369":410,"_411":412,"_413":414,"_278":416,"_417":418,"_263":370,"_419":420,"_421":422,"_110":427},"muGBVeCR0xFHuqyawn5sQNE9deU2hd","q","$$\\mathrm{Nd^{2+}}$$ = __________","ans",[415],2,"2023 - 31st January Morning Shift","course","chemistry","exp","Nd(60) = [Xe] 4f⁴ 5d⁰ 6s²\n

Nd²⁺\n= [Xe] 4f⁴ 5d⁰ 5s⁰","opts",[423,424,425,426],"$$\\mathrm{4f^4 6s^2}$$","$$\\mathrm{4f^3}$$","$$\\mathrm{4f^4}$$","$$\\mathrm{4f^2 6s^2}$$",4,"4","initComment","initReply","actionData","errors"]

JEE MAIN - Chemistry (2023 - 31st January Morning Shift - No. 4)

Explanation

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