10th Standard Syllabus & Materials
10th Standard
TN 10th Social Science ECO - Industrial Clusters in Tamilnadu - New Important Questions And Answers Study Material - QB365 Set A
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TN 10th Social Science ECO - Government and Taxes - New Important Questions And Answers Study Material - QB365 Set A
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TN 10th Social Science ECO - Food Security and Nutrition - New Important Questions And Answers Study Material - QB365 Set A
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TN 10th Social Science ECO - Globalization and Trade - New Important Questions And Answers Study Material - QB365 Set A
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TN 10th Social Science ECO - Gross Domestic Product and its Growth : an Introduction - New Important Questions And Answers Study Material - QB365 Set A
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TN 10th Social Science CIV - India's International Relations - New Important Questions And Answers Study Material - QB365 Set A
Published on: 13/05/2022
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Questions + Answers key
Take MCQ Science Test1.
Classify the following substances into deliquescent, hygroscopic. Conc. Sulphuric acid, Copper sulphate pentahydrate, Silica gel, Calcium chloride, and Gypsum salt.
2.
Define Hydrated salt.
3.
4.
Give an example each
i) gas in liquid
ii) solid in liquid
iii) solid in solid
iv) gas in gas
5.
Define the term: Solution.
1.
|
Deliquescent |
Hygroscopic |
|---|---|
| Copper sulphate pentahydrate, Calcium chloride, Gypsum Salt. | Conc. Sulphuric acid, Silica gel. |
2.
(i) Ionic substances crystallize out from their saturated aqueous solution with a definite number of molecules of water.
(ii) The number of water molecules found in the crystalline substance is called water of crystallization.
(iii) Such salts are called hydrated salts.
(iv) E.g. Blue vitriol - CuSO4.5H2O
3.
4.
i) Gas in liquid - CO2 dissolved in water (Soda water)
ii) Solid in liquid - NaCl dissolved in water
iii) Solid in solid - Copper dissolved in gold (Alloys)
iv) Gas in gas - Mixture of Helium-oxygen gases
5.
(i) A solution is a homogeneous mixture of two or more substances.
E g: Sea water.
(ii) In a solution, the component present in lesser amount by weight is called a solute.
(iii) The component present in a larger amount by weight is called a solvent.
(iv) Solute + Solvent → Solution
10th Standard Syllabus & Materials
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TN 10th Social Science CIV - State Government - New Important Questions And Answers Study Material - QB365 Set A
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TN 10th Social Science CIV - Central Government - New Important Questions And Answers Study Material - QB365 Set A
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TN 10th Social Science CIV - Indian Constitution - New Important Questions And Answers Study Material - QB365 Set A
Tamilnadu Stateboard 10th Standard Subjects
Tamilnadu Stateboard Standards
