Which option shows the correct pairing for caustic soda?

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Multiple Choice

Which option shows the correct pairing for caustic soda?

Explanation:
Caustic soda is the common name for sodium hydroxide, a strong base that dissociates in water to yield hydroxide ions (OH−), giving it its caustic and highly reactive character. The correct pairing is caustic soda with NaOH, since NaOH is exactly the chemical formula for sodium hydroxide. The other options are different sodium compounds—NaCl is table salt, Na2CO3 is washing soda, and NaHCO3 is baking soda—each with distinct properties and not referred to as caustic soda.

Caustic soda is the common name for sodium hydroxide, a strong base that dissociates in water to yield hydroxide ions (OH−), giving it its caustic and highly reactive character. The correct pairing is caustic soda with NaOH, since NaOH is exactly the chemical formula for sodium hydroxide. The other options are different sodium compounds—NaCl is table salt, Na2CO3 is washing soda, and NaHCO3 is baking soda—each with distinct properties and not referred to as caustic soda.

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