CHEMISTRY CLASS 9 CHAPTER NO 1 AND CHAPTER 7 SHORT TEST

Chemistry 9 class papers for chapter no 1 and 7 separate test

Chapter-wise test class 9^th MCQs, SHORT AND LONG QUESTION 

Short Test ABOUT  FUNDAMENTALS OF CHEMISTRY and ELECTROCHEMISTRY chapter no1  and chapter no 7. There are two papers separate for two chapters .test incudes MCQs short question and long question.time and marks of the paper may be decided for a class and students

Test: Chemistry            Class: 9^th    Chapter: 7    Marks:    Time: 1H

Q.1:  Choose the correct answer.

1-         The oxidation state of Ba₃ (PO₄)₂

            a) + 2                           b) – 3                           c) + 3                           d) – 2

2-         The most popular of these alloys is sterling silver consist ____ per cent silver

            a) 9.25%                      b) 92.5%                      c) 5.92%                      d) 59.2%

3-         The formula of rust of iron.

            a) Fe₂O₃.nH₂O                        b) Fe₂O₃                      c) Fe (OH) ₃ .nH₂O     d) Fe (OH) ₃

4-         In redox reaction between Zn and HCl, the reducing agent

            a) Zn                            b) H⁺                           c) Cl^–                           d) H₂

5-         The oxidation state is shown.

            a) 2                              b) – 2                           c) + 2                           d) both b, c

Q2.      Give short answers.

1-         Does not-electrolyte from ions in solution

2-         Which type of chemical reaction take place in electrolytic?

3-         Where does the sodium metal be collected in the down cell?

4-         What happens to iron in the rusting progress?

5-         What is the advantage of galvanizing?

6-         Explain the role of O₂ in rusting?

Q.3:  a) What is electroplating. Explain it electroplating of chromium and refining of copper.5

          b) Manufacturing of sodium metal from fused NaCl    5

RELATED POSTS

• CHAPTER 1 FUNDAMENTALS OF CHEMISTRY 
• CHEMISTRY 9TH CHAPTER 1+2+3 PAPER FOR BOARD EXAMS
• CHEMISTRY FULL-TEXT BOOK 150 MCQs 
• CHEMISTRY CLASS 9 2ND HALF BOOK TEST SAMPLE PAPER
• باب نمبر 1،2،3 کا مکمل پیپر
•  HALF BOOK TEST

CHAPTER NO 1  TEST

Test: Chemistry            Class: 9^th              Chapter:  1          Marks:40

Q.1:  Choose the correct answer:

1.         Is most abundant on earth crust.         a) oxygen                    b) silicon                      c) nitrogen       d) Aluminum

2-         CH₂O is the empirical formula of a) Acetic acid b) glucose        c) formaldehyde          d) all

3-         Formula mass of K2SO₄ is                  a) 100 amu      b) 60 amu        c) 174 amu      d) 180 amu

4-         Is molecular ion a) C⁺H₄                        b) N⁺H₄                       c) H⁺₃O                       d) CO^2-₃

5-         9.0 g  of H₂O contains.                       a) 6.02 x 10²³ H – atom           b)   6.02 x 10²³ O – atom        c) 6.02 x 10²³ H₂O molecules     d) all

6-         Metals are almost                                a) 60%             b) 70%                         c) 80%                         d) 90%

7-         For Lithium   Z  =                               a)  3                 b) 5                  c) 7                  d) 9

8-         Is monogamous mixture                      a) soil               b) rock                         c) gasoline       d) none

9-         Ozone is                                              a) monatomic b) diatomic      c) polyatomic d) Homoatomic

10-       Limestone is                           a) Cao             b) Ca(OH)₂      c) CaCO₃                     d) NaOH – CaO

Q.2: Give short answers.

1-         Define environmental chemistry.    

2-         What is valiancy?                             

3-Compare Homogeneous and heterogeneous mixture?

4-         What is amu and why it is needed.

5-         Give scope of Biochemistry             

6-         Define symbol and give examples.

7-         Define compound.                           

8-         Define mole and how it is calculated.         

9-         What is the mass number. Give an example.

10-       Define molecule.