Elements and Compounds MCQs Class-6 Dalal Simplified ICSE Chemistry Solutions Chapter-1 Elements, Compounds and Mixtures Unit-1 Elements and Compounds Dr Viraf J Dalal Middle School Allied Publishers Solutions. Chapter-2. We Provide Step by Step Solutions of Exercise/Lesson -2 Complete the statement, Match the following, Correct answer of Dr Viraf J Dalal Middle School Chemistry Allied Publishers. Visit official Website CISCE for detail information about ICSE Board Class-6.
Elements and Compounds MCQs Class-6 Dalal Simplified ICSE Chemistry Solutions Chapter-2 Unit-1
| Board | ICSE |
| Class | 6th |
| Subject | Chemistry |
| Book Name | Dalal New Simplified |
| Chapter-2 | Elements, Compounds and Mixtures |
| Unit-1 | Elements & Compounds |
| Topic | Solution of exercise MCQs |
| Session | 2023-24 |
Objective Types Questions
Elements and Compounds MCQs Class-6 Dalal Simplified ICSE Chemistry Solutions Chapter-2 Unit-1
Question: 1. Complete the statements given below by filling in the blank with the correct word/s.
1. An element is a pure substance which cannot be broken down by physical or …chemical… methods.
2. The basic unit of an element is a/an …atom… [molecule/atom/ion]
3. Atom contains …nucleus…. [neutron/nucleus], with positively charged …protons…. [protons/neutrons]
4. Element …silver…. [silver/copper/carbon] has the symbols derived from its Latin name ‘argentum’.
5. From the elements – He, Br, Pt & O; the element which is metallic is …Pt… an inert element is …He…. forms a triatomic molecule is …O.… is liquid at room temperature is ….Br…
6. From the elements nitrogen, chlorine, bromine, the element present in the atmosphere is …nitrogen….
Question: 2. Match the statements in List I – 1 to 10 with their correct answers in List II – A to J.
| List – I | List – II |
| 1. Fluorine & 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 & non-metals | (d) Chemical formula |
| 5. The term used for the substances which take part in the chemical reaction | (e) Halogens |
| 6. The term which represents a substance by means of symbols | (f) Water |
| 7. The term used for substances formed as a result of a chemical reaction | (g) Nitric oxide |
| 8. A compound containing one atom of zinc & two atoms of chlorine | (h) Products |
| 9. The chemical name for nitrogen monoxide | (i) Phosphorus |
| 10. A polyatomic molecule | (j) Zinc chloride |
Answer:
| List – I | List – II |
| 1. Fluorine & chlorine | (a) Halogens |
| 2. A diatomic molecule | (b) Nitrogen |
| 3. A molecule containing the elements hydrogen and oxygen | (c) Water |
| 4. A metalloid – showing properties of both metals & non-metals | (d) Boron |
| 5. The term used for the substances which take part in the chemical reaction | (e) Reactants |
| 6. The term which represents a substance by means of symbols | (f) Chemical formula |
| 7. The term used for substances formed as a result of a chemical reaction | (g) Products |
| 8. A compound containing one atom of zinc & two atoms of chlorine | (h) Zinc chloride |
| 9. The chemical name for nitrogen monoxide | (i) Nitric oxide |
| 10. A polyatomic molecule | (j) Phosphorus |
Question: 3. Select the correct answer from the choice in brackets:
1. The symbol of – mercury [Mg/Hg/Ag]
2. The type of element – phosphorus [metallic/non-metallic/noble gas]
3. The type of molecule – bromine [monoatomic/diatomic/triatomic]
4. A compound [nitrogen/ozone/zinc chloride]
5. The unreactive non-metallic element [chlorine/argon/sulphur]
6. The negatively charged particles in an atom [protons/neutrons/electrons]
7. The element which is malleable [sulphur/carbon/iron]
8. An impure substance [element/mixture/compound]
9. An elements which is a poor conductor of heat [copper/carbon/aluminium]
10. A group of atoms of elements [ion/radical/combining power]
Question: 4. Match the compound in List I – 1 to 20 with their correct formulas in List II – A to T.
| List – I | List – II |
| 1. Hydrochloric acid | (a) NaCl |
| 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) CuSO2 |
| 7. Calcium hydroxide | (g) CaCO3 |
| 8. Carbonic acid | (h) NH4Cl |
| 9. Sodium hydroxide | (i) HCl |
| 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) Al(OH)3 |
| 20. Ammonium chloride | (t) Zn(OH)2 |
Answer:
| List – I | List – II |
| 1. Hydrochloric acid | (a) HCI |
| 2. Potassium hydroxide | (b) KOH |
| 3. Sulphuric acid | (c) H2SO4 |
| 4. Zinc hydroxide | (d) Zn(OH)2 |
| 5. Sodium chloride | (e) NaCI |
| 6. Nitric acid | (f) HNO3 |
| 7. Calcium hydroxide | (g) Ca(OH)2 |
| 8. Carbonic acid | (h) H2CO3 |
| 9. Sodium hydroxide | (i) NaOH |
| 10. Copper sulphate | (j) CuSO4 |
| 11. Potassium chloride | (k) KCI |
| 12. Calcium carbonate | (l) CaCO3 |
| 13. Magnesium sulphide | (m) MgS |
| 14. Zinc sulphate | (n) ZnSO4 |
| 15. Aluminium hydroxide | (o) AI(OH)3 |
| 16. Sodium carbonate | (p) Na2CO3 |
| 17. Calcium sulphide | (q) CaS |
| 18. Magnesium oxide | (r) MgO |
| 19. Zinc oxide | (s) ZnO |
| 20. Ammonium chloride | (t) NH4CI |
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