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Chapter 8: Metallurgy
Balbharati solutions for Science and Technology Part 1 10th Standard SSC Maharashtra State Board Chapter 8 Metallurgy Exercises [Pages 108 - 109]
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Alloy of sodium with mercury.
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Molecular formula of the common ore of aluminium.
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The oxide that forms salt and water by reacting with both acid and base.
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The device used for grinding an ore.
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The nonmetal having electrical conductivity.
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The reagent that dissolves noble metals.
Make pairs of substances and their properties
| Substance | Property |
| a. Potassium bromide (KBr) | 1. Combustible |
| b. Gold | 2. Soluble in water |
| c. Sulphur | 3. No chemical reaction |
| d. Neon | 4. High ductility. |
Identify the pairs of metals and their ores from the following.
| Group A | Group B |
| a. Bauxite | i. Mercury |
| b. Cassiterite | ii. Aluminium |
| c. Cinnabar | iii. Tin |
Explain the term of Metallurgy .
Explain the term of Ores .
Explain the term Minerals.
Explain the term Gangue .
Write scientific reason.
Lemon or tamarind is used for cleaning copper vessels turned greenish.
Write scientific reason.
Generally the ionic compounds have high melting points.
Write scientific reason.
Sodium is always kept in kerosene.
Write scientific reason.
Pine oil is used in froth flotation.
Write scientific reason.
Anodes need to be replaced from time to time during the electrolysis of alumina.
When a copper coin is dipped in silver nitrate solution, a glitter appears on the coin after some time. Why does this happen? Write the chemical equation.
The electronic configuration of metal ‘A’ is 2,8,1 and that of metal ‘B’ is 2,8,2. Which of the two metals is more reactive? Write their reaction with dilute hydrochloric acid.
Draw a neat labelled diagram.
Magnetic separation method.
Draw a neat labelled diagram.
Froth floatation method.
Draw a neat labelled diagram.
Electrolytic reduction of alumina.
Draw a neat labelled diagram.
Hydraulic separation method.
Write chemical equation for the event.
Aluminium came in contact with air.
Write chemical equation for the event.
Iron filings are dropped in aqueous solution of copper sulphate.
Write the chemical equation for the event.
A reaction was brought about between ferric oxide and aluminum.
Write chemical equation for the event.
Electrolysis of alumina is done.
Write a chemical equation for the following event.
Zinc oxide is dissolved in dilute hydrochloric acid.
Complete the statement using every given option.
During the extraction of aluminium..............
Ingredients and gangue in bauxite.
Complete the statement using every given option.
During the extraction of aluminium..............
Use of leaching during the concentration of ore.
Complete the statement using every given option.
During the extraction of aluminium..............
Chemical reaction of transformation of bauxite into alumina by Hall’s process.
Complete the statement using every given option.
During the extraction of aluminium.........
Heating the aluminium ore with concentrated caustic soda.
Divide the metals Cu, Zn, Ca, Mg, Fe, Na, Li into three groups, namely reactive metals, moderately reactive metals and less reactive metals.
Chapter 8: Metallurgy
Balbharati solutions for Science and Technology Part 1 10th Standard SSC Maharashtra State Board chapter 8 - Metallurgy
Balbharati solutions for Science and Technology Part 1 10th Standard SSC Maharashtra State Board chapter 8 (Metallurgy) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the Maharashtra State Board Science and Technology Part 1 10th Standard SSC Maharashtra State Board solutions in a manner that help students grasp basic concepts better and faster.
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Concepts covered in Science and Technology Part 1 10th Standard SSC Maharashtra State Board chapter 8 Metallurgy are Types of Elements: Metals, Types of Elements: Non-metal, Corrosion of Metals and Its Prevention, Types of Separation or Concentration of an Ore, Physical Properties of Metals, Electrovalent (or Ionic) Bond, Extraction of Aluminium, Chemical Properties of Metal, Physical Properties of Non-metal, Chemical Properties of Non-metal, Reactivity Series of Metals, Ionic Compounds and Electrical Conductivity, Metallurgy, Extraction of Metals, Refining of Metals.
Using Balbharati 10th Standard Board Exam solutions Metallurgy exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in Balbharati Solutions are important questions that can be asked in the final exam. Maximum students of Maharashtra State Board 10th Standard Board Exam prefer Balbharati Textbook Solutions to score more in exam.
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