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10upon10.com

class/std Ten Science

Acid, Base & Salt

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MCQs: 6

Question: 51. What is the pH value of sodium chloride?

  1. 7 (seven)
  2. More than 7 (seven)
  3. Less than 7 (seven)
  4. Zero

Answer: (a) 7 (seven)

Question: 52. What is the pH value of distilled water?

  1. 7 (seven)
  2. More than 7 (seven)
  3. Less than 7 (seven)
  4. Zero

Answer: (a) 7 (seven)

Question: 53. If the pH value of a solution is 6, then solution will be of what type?

  1. Strong acid
  2. Strong base
  3. Mild acid
  4. Mild base

Answer: (c) Mild acid

Question: 54. If the pH value of a solution is 0 (zero), then solution will be of what type?

  1. Strong acid
  2. Strong base
  3. Mild acid
  4. Mild base

Answer: (a) Strong acid

Question: 55. Which of the following acid is produced in our stomach?

  1. Sulphuric acid
  2. Acetic acid
  3. Hydrochloric acid
  4. Dilute nitric acid

Answer: (c) Hydrochloric acid

Question: 56. What happens when carbon dioxide gas reacts with sodium hydroxide?

  1. Carbon monoxide is formed
  2. Carbon dioxide is formed
  3. Sodium carbonate is formed
  4. Carbon dioxide does not react with sodium hydroxide

Answer: (c) Sodium carbonate is formed

Question: 57. Which of the following is common in all acids?

  1. Hydrogen ions
  2. Hydroxide ions
  3. Chloride ions
  4. Sodium ions

Answer: (a) Hydrogen ions

Question: 58. Which of the following is common in all bases?

  1. Hydrogen ions
  2. Hydroxide ions
  3. Chloride ions
  4. Sodium ions

Answer: (b) Hydroxide ions

Question: 59. Which of the following acid does produce hydrogen ions in absence of water?

  1. Hydrochloric acid
  2. Sulphuric acid
  3. Muriatic acid
  4. None

Answer: (d) None

Explanation: No acid forms hydrogen ions in absence of water.

Question: 60. Hydrogen ions produced by acid exist in which of the following form?

  1. Hydrogen
  2. Hydronium ions
  3. Water ions
  4. Hydroxide ions

Answer: (b) Hydronium ions

MCQs Test

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