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Chemistry CBSE Live product
Class 10 (2025-26)
Chemical reaction and equations
Annual Revision IV - Chemical reactions and equations
1.
Characteristics of chemical reaction
Question:
1
m.
Choose the correct answer:
When sodium bicarbonate reacts with dilute hydrochloric acid, the gas evolved is
hydrogen; it turns lime water milky
carbon dioxide; it turns lime water milky
carbon dioxide; it blows off a burning match stick with a pop sound
hydrogen; it gives pop sound with burning match stick
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