Multiple Choice Questions (MCQs)- Inorganic Chemistry Unit I- BP104T

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In this article we will see some Multiple-Choice Questions (MCQs) based on Inorganic chemistry Unit I (BP104T).

What are the sources of impurities?

  1. Starting materials and intermediates
  2. Products of over reaction
  3. Products of side reactions
  4. Only 1 and 2
  5. All of the above

What are the types of impurities?

  1. Organic impurities
  2. Inorganic impurities
  3. Residual solvents
  4. Only 1 and 2
  5. All of the above

Based on toxicity residual solvents can be classified in how many classes?

  1. One
  2. Two
  3. Three
  4. Four

Which reagent is commonly used in the limit test of chloride ions?

  1. Silver nitrate solution
  2. Sodium hydroxide solution
  3. Potassium iodide solution
  4. Ammonium thiocyanate solution

Which is the precipitate formed when silver nitrate solution is added to a solution containing chloride ions?

  1. Silver chloride
  2. Solver oxide
  3. Silver sulfate
  4. Silver iodide

What colour change indicates the presence of chloride ions when silver nitrate solution is added?

  1. Red
  2. Pink
  3. White
  4. yellow

In the presence of which acid is the limit test of chloride ions typically conducted?

  1. Hydrochloric acid
  2. Nitric acid
  3. Sulfuric acid
  4. Acetic acid

Which of the following substances can interfere with the limit test of chloride ions by forming insoluble precipitates with silver ions?

  1. Nitrate ions
  2. Sulfate ions
  3. Phosphate ions
  4. Carbonate ions

Which reagent is commonly used in the limit test of sulfates to precipitate sulfate ions as barium sulfate?

  1. Silver nitrate solution
  2. Sodium hydroxide solution
  3. Barium chloride solution
  4. Ammonium thiocyanate solution

What is the appearance of precipitate formed when barium chloride solution is added to a solution containing sulfate ions?

  1. Red
  2. Pale pink
  3. White
  4. Green

How can the presence of sulfate ions be confirmed in the precipitate formed during the limit test?

  1. By dissolving the precipitate in water
  2. By heating the precipitate with sodium hydroxide solution
  3. By testing the solubility of the precipitate in dilute hydrochloric acid
  4. By adding silver nitrate solution to be precipitate

What is the chemical formula of the precipitate formed when barium chloride solution reacts with sulfate ions?

  1. BaSO4
  2. BaCl2
  3. Ba2SO4
  4. BaSO3

Which of the following substances can interfere with the limit test of sulfates by forming insoluble precipitates with barium ions?

  1. Carbonate ions
  2. Chloride ions
  3. Nitrate ions
  4. Phosphate ions

Which reagent is used in the limit test for iron to precipitate iron ions as ferric hydroxide?

  1. Sodium hydroxide solutions
  2. Silver nitrate solutions
  3. Barium chloride solution
  4. Ammonium thiocyanate solution

What is the colour of the precipitate formed when sodium hydroxide solution is added to a solution containing iron ions?

  1. Pale pink
  2. Reddish brown
  3. White
  4. Yellow

How can the presence of iron ions be confirmed in the precipitate formed during the limit test?

  1. By dissolving precipitate in water
  2. By heating precipitate with nitric acid
  3. By testing solubility of the precipitate in ammonia solution
  4. By adding nitrate solution to the precipitate

Which of the following substances can interfere with the limit test for iron by forming coloured complexes with iron ions?

  1. Sulfate ions
  2. Phosphate ions
  3. Carbonate ions
  4. Chloride ions

At which pH is the precipitation of ferric hydroxide most effective in the limit test for iron?

  1. Acidic pH
  2. Neutral pH
  3. Alkaline pH
  4. Basic pH

Which reagent is commonly used in the limit test for heavy metals to precipitate heavy metal ions as sulfide?

  1. Sulfuric acid solution
  2. Sodium hydroxide solution
  3. Hydrogen sulfide
  4. Silver nitrate solution

What is the appearance of the precipitate formed when hydrogen sulfide gas is passed through a solution containing heavy metal ions?

  1. White
  2. Pink
  3. Brown
  4. Yellow

How many methods adopted by Indian Pharmacopoeia for the limit test of heavy metals?

  1. One
  2. Two
  3. Three
  4. Four

Read our following article on same topic to solve the practice MCQs.

Impurities- It’s sources, Types and Test of Purity

Limit Test for Chlorides, Sulphates and Iron

Limit test for Heavy Metals

 

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