Maharashtra State BoardSSC (English Medium) 8th Standard
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Balbharati solutions for General Science 8th Standard Maharashtra State Board chapter 12 - Introduction to Acid and Base [Latest edition]

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General Science 8th Standard Maharashtra State Board - Shaalaa.com

Chapter 12: Introduction to Acid and Base

Exercise
Exercise [Page 88]

Balbharati solutions for General Science 8th Standard Maharashtra State Board Chapter 12 Introduction to Acid and Base Exercise [Page 88]

Exercise | Q 1 | Page 88

Identify the following solutions, whether they are acid or alkali.

Solution Change in Indicator Acid/Alkali
  Litmus Phenolphthalein Methyl orange  
1. ... No change ...  
2. ... ... Orange colour turns red  
3. Red litmus turns blue ... ...  
Exercise | Q 2 | Page 88

Write chemical names from given formulae.
H2SO4,   Ca(OH)2,  HCl,  NaOH,  KOH, NH4OH

Exercise | Q 3 | Page 88

Sulphuric acid has the highest importance in the chemical industry. Why?

Exercise | Q 4.1 | Page 88

Which acid is used for getting chloride salt?

Exercise | Q 4.2 | Page 88

By squeezing lemon on a piece of rock the gas liberated turned lime water milky. which compound is present in the rock?

Exercise | Q 4.3 | Page 88

The label on the bottle of chemical is spoiled. How will you find whether the chemical is acidic or not?

Exercise | Q 5.1 | Page 88

Explain the difference between acid and alkali.

 
Exercise | Q 5.2 | Page 88

Why indicator does not get affected by salt?

Exercise | Q 5.3 | Page 88

Which substances are produced by the neutralization process?

Exercise | Q 5.4 | Page 88

Which are the industrial uses of acids?

Exercise | Q 6.1 | Page 88

Main constituent of acid is ____________.

Exercise | Q 6.2 | Page 88

Main constituent of alkali is _____________.

Exercise | Q 6.3 | Page 88

Tartaric acid is a................ acid.

Exercise | Q 7 | Page 88

Match the pairs. 

  Group A  Group B
1. Tamarind  a. Acetic acid
2. Curd  b. Citric acid
3. Lemon  c. Tartaric acid
4.Vinegar d. Lactic acid
Exercise | Q 8.1 | Page 88

State true or false

Oxides of metals are alkaline in nature.

  • True

  • False

Exercise | Q 8.2 | Page 88

State true or false

Salt is acidic.

  • True

  • False

Exercise | Q 8.3 | Page 88

State true or false.

Metal corrodes due to salts

  • True

  • False

Exercise | Q 8.4 | Page 88

State true or false.

Salts are neutral.

  • True

  • False

Exercise | Q 9 | Page 88

Classify following substances into Acidic, Basic and Neutral group

HCl, NaCl, MgO, KCl, H2SO4, HNO3, H2O, Na2CO3

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Chapter 12: Introduction to Acid and Base

Exercise
General Science 8th Standard Maharashtra State Board - Shaalaa.com

Balbharati solutions for General Science 8th Standard Maharashtra State Board chapter 12 - Introduction to Acid and Base

Balbharati solutions for General Science 8th Standard Maharashtra State Board chapter 12 (Introduction to Acid and Base) 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 General Science 8th Standard Maharashtra State Board solutions in a manner that help students grasp basic concepts better and faster.

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Concepts covered in General Science 8th Standard Maharashtra State Board chapter 12 Introduction to Acid and Base are Neutalization, Bases (Alkalis), Indicators, Acids, Acids, Acids.

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