CDS 2026 PYQ with Answer — Chemical formula of cooking soda is

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Atlas Essay Optional Vistaar

UPSC CDSCombined Defence Services Overview

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Overview Daily Quiz Mock Tests All-India PYQs Practice

CDS 2026 · General Knowledge (CDS-II)Q69

Back to the full 2026 paper

2026 · Q69

Chemical formula of cooking soda is

General KnowledgeChemistry

ANaCl
BNaOCl
CNa2CO3
DNaHCO3

Explanation

Cooking soda is sodium bicarbonate, NaHCO3. NaCl is common salt, Na2CO3 is washing soda (sodium carbonate), and NaOCl is sodium hypochlorite. The answer is (D).

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