Maharashtra State BoardSSC (English Medium) Class 9
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Balbharati solutions for Maharashtra state board Class 9 Science and Technology chapter 4 - Measurement of Matter [Latest edition]

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Maharashtra state board Class 9 Science and Technology - Shaalaa.com

Chapter 4: Measurement of Matter

Exercise

Balbharati solutions for Maharashtra state board Class 9 Science and Technology Chapter 4 Measurement of Matter Exercise [Page 57]

Exercise | Q 1.1 | Page 57

Give example.

Positive radicals 

Exercise | Q 1.2 | Page 57

Give example.

Basic radicals 

Exercise | Q 1.3 | Page 57

Give example.

Composite radicals 

Exercise | Q 1.4 | Page 57

Give example.

Metals with variable valency 

Exercise | Q 1.5 | Page 57

Give example.

Bivalent acidic radicals 

Exercise | Q 1.6 | Page 57

Give example.

Trivalent basic radicals 

Exercise | Q 2 | Page 57

Write symbols of the following elements and the radicals obtained from them and indicate the charge on the radicals.

Mercury, potassium, nitrogen, copper, sulphur, carbon, chlorine, oxygen

Exercise | Q 3 | Page 57

Write the steps in deducing the chemical formulae of the following compounds.

Sodium sulphate, potassium nitrate, ferric phosphate, calcium oxide, aluminium hydroxide

Exercise | Q 4.1 | Page 57

Write answer to the following question and explain your answer. 
Explain how the element sodium is monovalent. 

Exercise | Q 4.2 | Page 57

Write answer to the following question and explain your answer. 
M is a bivalent metal. Write down the steps to find the chemical formulae of its compounds formed with the radicals, sulphate and phosphate 

Exercise | Q 4.3 | Page 57

Write answer to the following question and explain your answer. 
Explain the need for a reference atom for atomic mass. Give some information about two reference atoms. 

Exercise | Q 4.4 | Page 57

Write answer to the following question and explain your answer. 
What is meant by Unified Atomic Mass.' 

Exercise | Q 4.5 | Page 57

Write answer to the following question and explain your answer. 
Explain with examples what is meant by a 'mole' of a substance . 

Exercise | Q 5 | Page 57

Write the names of the following compounds and deduce their molecular masses.
Na2SO4, K2CO3, CO2, MgCl2, NaOH, AlPO4, NaHCO3 

Exercise | Q 6 | Page 57

Two samples ‘m’ and ‘n’ of slaked lime were obtained from two different reactions. The details about their composition are as follows: 

‘sample m’  mass : 7g
Mass of constituent oxygen : 2g
Mass of constituent calcium : 5g
‘sample n’ mass : 1.4g
Mass of constituent oxygen : 0.4g
Mass of constituent calcium : 1.0g
Which law of chemical combination does this prove? Explain.

Exercise | Q 7 | Page 57
Deduce the number of molecules of the following compounds in the given quantities.
32g oxygen, 90g water, 8.8g carbon dioxide, 7.1g chlorine.
Exercise | Q 8 | Page 57

If 0.2 mol of the following substances are required how many grams of those substances should be taken? 

Sodium chloride, magnesium oxide, calcium carbonate

Chapter 4: Measurement of Matter

Exercise
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Maharashtra state board Class 9 Science and Technology - Shaalaa.com

Balbharati solutions for Maharashtra state board Class 9 Science and Technology chapter 4 - Measurement of Matter

Balbharati solutions for Maharashtra state board Class 9 Science and Technology chapter 4 (Measurement of Matter) 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 Maharashtra state board Class 9 Science and Technology solutions in a manner that help students grasp basic concepts better and faster.

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Concepts covered in Maharashtra state board Class 9 Science and Technology chapter 4 Measurement of Matter are Law of Chemical Combination, Law of Conservation of Matter, Law of Constant Proportions, Atom: Size, Mass and Valency, The Mass of an Atom, Chemical Symbols of Elements, Moleculars of Elements and Compounds, Molecular Mass and the Concept of Mole, Valency, Variable Valency, Chemical Formulae of Compound : Recapitulation.

Using Balbharati 9th solutions Measurement of Matter 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 9th prefer Balbharati Textbook Solutions to score more in exam.

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