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Inorganic Chemistry - I

Inorganic Chemistry - I

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Questions

Question 1 Multiple Choice (Single Answer)

SO2 (Sulphur dioxide) is

  1. a reducing agent
  2. an oxidising agent
  3. both reducing and oxidising agent
  4. neither an oxidising agent nor a reducing agent
Question 2 Multiple Choice (Single Answer)

Which of the following gases has pungent suffocating odour?

  1. CO
  2. CO2
  3. O2 gas
  4. SO2
Question 3 Multiple Choice (Single Answer)

Which of the following is not a property of SO2?

  1. It decolourises bromine water.
  2. It turns acidified potassium dichromate solution green.
  3. It turns potassium permanganate solution pink.
  4. It bleaches the colour of a wet flower.
Question 4 Multiple Choice (Single Answer)

What is the effect of H2S on blood?

  1. It destroys the nucleus of the blood cells.
  2. It destroys the haemoglobin in the blood.
  3. It destroys the plasma membrane of the blood cells.
  4. It reacts with haemoglobin and forms sulphoxy haemoglobin.
Question 5 Multiple Choice (Single Answer)

Why does newspaper turn yellow on prolong exposure to atmosphere?

  1. Because the newspaper is bleached by SO2, which gets oxidized on prolonged exposure.
  2. Because the ink used to print newspaper reacts with water vapours and turns yellow.
  3. Because the newspaper undergoes reduction on exposure to atmosphere.
  4. Because the material with which newspaper is made reacts with atmospheric gases and turns yellow.
Question 6 Multiple Choice (Single Answer)

Which of the following is a property of HCl gas?

  1. Lighter than air
  2. Soluble in water
  3. Poisonous
  4. Tasteless
Question 7 Multiple Choice (Single Answer)

Which of the following is not a characteristic property of H2S?

  1. Rotten eggs smell
  2. Turns lead acetate paper black
  3. Strong oxidizing agent
  4. Decolourises acidified KMnO4 solution
Question 8 Multiple Choice (Single Answer)

Which of the following turns lime water milky?

  1. CO
  2. SO2
  3. O2
  4. Cl2
Question 9 Multiple Choice (Single Answer)

What is the chemical formula of Oleum?

  1. H2SO4
  2. H2S2O7
  3. Na2SO4.10H2O
  4. SO2Cl2
Question 10 Multiple Choice (Single Answer)

Assertion (A): Drinking water is chlorinated.
Reason (R): Chlorination makes water transparent, chemically rich and very nutritious.

  1. Both A and R are true, and R is the correct explanation of A.
  2. Both A and R are true but R is not a correct explanation of A.
  3. A is true but R is false.
  4. A is false but R is true.
Question 11 Multiple Choice (Single Answer)

Heavy water is

  1. D2O
  2. H2O along with Ca, Mg, carbonate
  3. H2O2
  4. Sea water (H2O + Salt)
Question 12 Multiple Choice (Single Answer)

At what temperature does the thermal decomposition of H2S complete?

  1. 310°C
  2. 770°C
  3. 1000°C
  4. 273°C
Question 13 Multiple Choice (Single Answer)

Which of the following statements is incorrect about sulphuric acid?

  1. It reacts with Barium chloride and forms white precipitates.
  2. It releases SO2 on heating with copper.
  3. It forms H2 gas on heating with NaCl.
  4. It is used in the extraction of metals.
Question 14 Multiple Choice (Single Answer)

Which of the following products is formed with glucose when added in H2SO4 solution?

  1. Black spongy mass of carbon rises up
  2. White precipitates settle down
  3. Reddish brown mass rises up
  4. Black precipitates settle down
Question 15 Multiple Choice (Single Answer)

Nitrogen was discovered by

  1. Scheele
  2. Lavoiser
  3. Daniel Rutherford
  4. Cavendish
Question 16 Multiple Choice (Single Answer)

Which of the following is the boiling point of H2SO4?

  1. 338°C
  2. 770°C
  3. 473°C
  4. 127°C
Question 17 Multiple Choice (Single Answer)

Which of the following does not react with H2SO4 under any condition?

  1. Na
  2. Fe
  3. Cu
  4. Pt
Question 18 Multiple Choice (Single Answer)

Substances burn more rapidly in pure oxygen than in air because

  1. air contains helium
  2. air has a lower concentration of oxygen than pure oxygen
  3. air contains methane
  4. air contains ozone
Question 19 Multiple Choice (Single Answer)

Oxygen is prepared on a large-scale from

  1. potassium permanganate
  2. air
  3. water
  4. sodium peroxide
Question 20 Multiple Choice (Single Answer)

Which of the following gases is evolved when H2SO4 reacts with metal sulphide?

  1. SO2
  2. O2
  3. H2S
  4. SO3
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