railway DFCCIL Junior Executive 2023 (CBT 1 & CBT 2) Mock Test General Science

সীসা নাইট্রেট উত্তপ্ত হলে নিচের কোন কঠিন যৌগ তৈরি হয়?

1
Pb
2
Pb(OH)2
3
PbO
4
Pb(CO3)2
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