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What are Acids and Bases?

10th Class - CBSE - Chemistry - Acids, Bases and Salts - 2 Questions - 0 Notes

Important Questions

Q1 Single Correct Hard

$$NaHCO_{3}$$ can be used on its own to make cakes or bread. Baking powder is more commonly used, and contains $$NaHCO_{3}$$, $$Ca(H_{2}PO_{4})_{2}$$ and starch. An improved combination baking powder contains about 40% starch, 30% $$NaHCO_{3}$$ 20% $$NaAl(SO_{4})_{2}$$ and 10% $$Ca(H_{2}PO_{4})_{2}.$$ 

Answer the following questions based on above study.

 

Rise in bread and cakes is due to______ when it decomposes between $$50^{o}C$$ and $$100^{o}C$$. 

  • A. $$CO_{2}$$
  • B. $$H_{2}O$$
  • C. both (a) and (b)
  • D. none of these

Asked in: Chemistry - Acids, Bases and Salts


1 Verified Answer | Published on 02nd 08, 2020

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Q2 Single Correct Medium

Which acid helps in the digestion of food without harming the stomach?

  • A. $$H_2SO_4$$
  • B. $$HCl$$
  • C. $$CH_3COOH$$
  • D. $$H_3PO_4$$

Asked in: Chemistry - Acids, Bases and Salts


1 Verified Answer | Published on 02nd 08, 2020

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