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Question
Match the compounds in List I – 1 to 20 with their correct formulas from in List II-A to T.
| List I | List II | ||
| 1 | Hydrochloric acid | A | NaCI |
| 2 | Potassium Hydroxide | B | NaOH |
| 3 | Sulphuric Acid | C | KCI |
| 4 | Zinc Hydroxide | D | Ca(OH)2 |
| 5 | Sodium Chloride | E | CaS |
| 6 | Nitric Acid | F | CuSO4 |
| 7 | Calcium Hydroxide | G | CaCO3 |
| 8 | Carbonic Acid | H | NH4CI |
| 9 | Sodium hydroxide | I | HCI |
| 10 | Copper sulphate | J | ZnO |
| 11 | Potassium Chloride | K | HNO3 |
| 12 | Calcium Carbonate | L | H2CO3 |
| 13 | Magnesium Sulphide | M | MgS |
| 14 | Zinc Sulphate | N | MgO |
| 15 | aluminium Hydroxide | O | KOH |
| 16 | Sodium Carbonate | P | ZnSO4 |
| 17 | Calcium Sulphide | Q | Na2CO3 |
| 18 | Magnesium Oxide | R | H2SO4 |
| 19 | Zinc Oxide | S | AI(OH)3 |
| 20 | Ammonium Chloride | T | Zn(OH)2 |
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Solution
| List I | List II | ||
| 1 | Hydrochloric acid | I | HCI |
| 2 | Potassium Hydroxide | O | KOH |
| 3 | Sulphuric Acid | R | H2SO4 |
| 4 | Zinc Hydroxide | T | Zn(OH)2 |
| 5 | Sodium Chloride | A |
NaCI |
| 6 | Nitric Acid | K | HNO3 |
| 7 | Calcium Hydroxide | D | Ca(OH)2 |
| 8 | Carbonic Acid | L | H2CO3 |
| 9 | Sodium hydroxide | B | NaOH |
| 10 | Copper sulphate | F | CuSO4 |
| 11 | Potassium Chloride | C | KCI |
| 12 | Calcium Carbonate | G | CaCO3 |
| 13 | Magnesium Sulphide | M | MgS |
| 14 | Zinc Sulphate | P | ZnSO4 |
| 15 | aluminium Hydroxide | S | AI(OH)3 |
| 16 | Sodium Carbonate | Q | Na2CO3 |
| 17 | Calcium Sulphide | E | CaS |
| 18 | Magnesium Oxide | N | MgO |
| 19 | Zinc Oxide | J | ZnO |
| 20 | Ammonium Chloride | H | NH4CI |
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Match the statements in List I – 1 to 10 correct answers in List II-A to J.
| List I | LIst II | ||
| 1 | Fluorine and chlorine | A | Nitrogen |
| 2 | A diatomic molecule | B | Boron |
| 3 | A molecule containing the elements hydrogen and oxygen. | C | Reactants |
| 4 | A metalloid - showing properties of both metals and non-metals. | D | Chemical Formula |
| 5 | The term used for the substances which take part in the chemical reaction | E | Halogens |
| 6 | The term represents a substance by means of symbols. | F | Water |
| 7 | The term used for the substances formed as a result of a chemical reaction | G | Nitric Acid |
| 8 | A compound containing one atom of zinc and two atoms of chlorine. | H | Products |
| 9 | The chemical name for nitrogen monoxide. | I | Phosphorus |
| 10 | A polyatomic molecule. | J | Zinc Chloride |
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Fe
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A compound containing carbon, oxygen and calcium.
Higher Order Thinking Skills.
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Higher Order Thinking Skills.
In the diagram given below, the circle, square and triangle represent the atoms of different elements.
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- molecule of an element consisting of two atoms
- molecule of an element consisting of three atoms
Name the process associated with the following
A fine beam of light entering through a small hole in a dark room illuminates the particles in its paths.
