Baking soda is used in small amount in making bread and cake. It is used to make soft and spongy. An aqueous solution of baking soda turns red litmus blue. It is also used in soda acid fire extinguisher .a) How does baking soda to make cake and bread spongy and soft ? b) how does it help in fire extinguisher ? c ) Is the ph value of baking soda lower than or higher than 7.
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they use yeast
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(i) On heating sodium bicarbonate, the main constituent of baking soda, decomposes to produce CO2. This causes cakes and bread to become light, soft and spongy. (ii) Baking soda on reaction with sulphuric acid gives CO2 vigorously. CO2 helps to extinguish fire.
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