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Class 9 Science CBSE Short questions for Is Matter around us pure






Given below are the Class 9 Science CBSE Short questions for Is Matter around us pure
a. Short questions
b. Very Short questions
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SHORT ANSWER QUESTIONS

Question 1. Define element, compound and mixture.
Question 2. What are pure substance? Give two examples of metals.
Question 3. What are metals? Given two examples of metals.
Question 4. Which method can be used to separate a mixture of naphthalene and common salt?
Question 5. Define homogeneous and heterogeneous mixtures.
Question 6. Classify the following into elements, compounds and mixtures.
a.Sodium
b.Soil
c.Sugar solution
d.Silver
e.Calcium carbonate
f.Tin
Question 7. Classify each of the following as a homogeneous or heterogeneous mixture.
Soda water, wood, air, soil, vinegar
Question 8. Classify the following elements as metal, nonmetal, or metalloid: aluminum, fluorine, gallium, phosphorus, krypton, tellurium, thorium, barium and strontium.
Question 9. Given the names of the elements present in the following compounds:
a.Quicklime
b.Hydrogen bromide
c.Baking soda
d.Potassium sulphate
Question 10. Can an element be distinguished from its compound by examination of its physical properties only? Explain.
Question 11. Explain why, water is a compound and not a mixture?
Question 12. How do the properties of a mixture differ from the properties of the components of the mixture?
Question 13. In terms of physical properties, what is there about mixtures that makes it possible to separate out the components?
Question 14. How would you separate the following mixture?
i.Salt and water
ii.Glass powder and iron filings
Question 15. Which method is used to separate two immiscible liquids?
Question 16. Name two elements which are in liquid state at room temperature?



LONG ANSWER QUESTIONS

Question 1. List five characteristics by which compounds can be distinguished from mixtures.
Question 2. What is chromatography? Explain by giving principle involved. State its important applications.
Question 3. Identify the following as homogeneous or heterogeneous matter.
a.Gasoline
b.Dirt
c.Smog
d.Alcohol
e.Iron nail
f.Vinegar
g.Aerosol spray
h.Air
i.Sea water
j.Steel
Question 4. Suggest a scheme for the separation of constituents of the following mixture:
Sulphur + sand + sugar + iron filings
Question 5. Which method of distillation is employed for the concentration of raw juice in sugar factories Explain in detail.
Question 6. Classify the following as physical change or chemical change.
i.Burning of magnesium ribbon in air
ii.Burning of sulphur in air
iii.Electrolysis of water
iv.Purification of copper sulphate from impure copper sulphat by crystallization
v.Preparation of sugar solution
vi.Conversion of milk into curd
vii.Evaporation of alcohol
viii.Burning of coal

 



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Class 9 Maths Class 9 Science
Reference Books for class 9 science

Given below are the links of some of the reference books for class 9 science.

These books by S.Chand Publications are detailed in their content and are must have books for class 9 students.
  1. Science for Ninth Class Part1 Physics
  2. Science for Ninth Class Part2 Chemistry
  3. Science for Ninth Class Part3 Biology
Some other books that might be worth considering are
  1. Oswaal CBSE Question Bank Class 9 Science Chapterwise & Topicwise We all know importance of practicing what we have studied. This book is perfect for practicing what you have learned and studied in the subject.
  2. Pearson Foundation Series (IIT-JEE/NEET) Physics, Chemistry, Maths & Biology for Class 9 (Main Books) | PCMB Combo These Foundation books would be helpful for students who want to prepare for JEE/NEET exams. Only buy them if you are up for some challenge and have time to study extra topics. These might be tough for you and you might need extra help in studying these books.
  3. Foundation Science Physics for Class - 9 by H.C. Verma This is one of my favorite Physics book for class 9. Most of the book is within the limits of CBSE syllabus. It might overwhelm you with its language but I feel if you can understand the content is authentic with plenty of problems to solve.

You can use above books for extra knowledge and practicing different questions.







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