engineering recuitment MP Vyapam Sub Engineer Mock Test 2024 General Science Chemistry Classification of Elements and Periodicity in Properties

কোন উপাদানগুলি সিলিকনের মতো একই যোজ্যতা রয়েছে?

1
Na এবং H
2
Mg এবং K
3
C এবং Ge
4
Cl এবং Br
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