railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) General Science Chemistry Periodic Table

Which of the following pair of the compound name - the formula is correct?
  1. Sodium Chloride - Na2Cl
  2. Potassium carbonate -  K2CO3

1
Only 1
2
Only 2
3
Both 1 and 2
4
Neither 1 nor 2
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