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

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Science and Technology 9th Standard Maharashtra State Board - Shaalaa.com

Chapter 4: Measurement of Matter

Exercise
Exercise [Page 57]

Balbharati solutions for Science and Technology 9th Standard Maharashtra State Board 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

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Chapter 4: Measurement of Matter

Exercise
Science and Technology 9th Standard Maharashtra State Board - Shaalaa.com

Balbharati solutions for Science and Technology 9th Standard Maharashtra State Board chapter 4 - Measurement of Matter

Balbharati solutions for Science and Technology 9th Standard Maharashtra State Board 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 Science and Technology 9th Standard Maharashtra State Board solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. Balbharati textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Science and Technology 9th Standard Maharashtra State Board chapter 4 Measurement of Matter are Law of Conservation of Matter, Law of Constant Proportions, Chemical Symbols of Elements, Variable Valency, Chemical Formulae of Compound : Recapitulation, Molecules of Elements, Atomic Size, Mass Number (A) or Atomic Mass, Valency and Its Types, Concept of Molecular Mass, Laws of Chemical Combination.

Using Balbharati 9th Standard [इयत्ता ९ वी] 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 Standard [इयत्ता ९ वी] prefer Balbharati Textbook Solutions to score more in exam.

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