9th Chemistry Unit 1 Introduction To Chemistry MCQs Sindh Board

9th Grade Chemistry Chapter 1 Introduction To Chemistry Sindh Board MCQs Notes Online Chapter Wise Question Answers. Sindh Boards Chemistry Subject Notes For Exams Preparations Karachi, Jamshoro, Sindh Boards. Chemistry class 9 sindh board notes Unit 1 Introduction To Chemistry Most Repeated Multiple Choice Questions With Answers. Chemistry notes for class IX sindh board karachi Boards.

9th Chemistry Sindh Board MCQs Unit 1

Q.1: Which one of these was the first to use opium as anesthesia?

1. Bu Ali Sina
2. Al-Beruni
3. Jabir-ibin-Haiyan
4. Al RaAzi

D

Q.2: Which gas is studied by J-Black.?

1. hydrogen chloride
2. sulpherdioxide
3. carbondioxide
4. carbonmonodioxide

C

Q.3: Scheele discovered -----------.?

1. Oxygen
2. Fluorine
3. Iodine
4. chlorine

D

Q.4: Who discovered the periodic arrangement of the elements?

1. Faraday
2. Gay Lussac
3. Mendeleev
4. Berzelius

C

Q.5: Which of these branches of chemistry deals with the study of compounds of living organisms.?

1. Analytical chemistry
2. Environmental chemistry
3. Organic chemistry
4. Biochemistry

D

Q.6: The study of laws and principles governing the combination of atoms and molecules in chemical reaction is called -----------.?

1. Inorganic chemistry
2. Industrial chemistry
3. Physical chemistry
4. Analytical chemistry

C

Q.7: Greek philosopher introduced the concept of elements on earth.?

1. Six
2. Five
3. Four
4. Three

C

Q.8: Which one of these scientists is known as Father of Chemistry?

1. Bu Ali Sina
2. Aristotle
3. Al-Beruni
4. Jabir bin Haiyan

D

Q.9: Information acquired through careful observation is known as:?

1. Prediction
2. Theory
3. Facts
4. None of them

C

Q.10: A theory when repeatedly gives the same results after experimentation and offers correct explanation of the scientific facts, it then becomes?

1. Law
2. Principle
3. Both a and b
4. None of them

A

Q.11: Which one of these scientists suggested the symbols of elements?

1. Wholer
2. Faraday
3. Dalton
4. Berzelius

D

Q.12: Who studied the process of electrolysis in details?

1. Gibbs
2. Faraday
3. Hess
4. Boyle

B

Q.13: What work Lavoisier did?

1. Developed the atomic theory
2. Suggested the symbols of elements
3. Arranged the elements in periodic table
4. Oxygen constituted about one fifth of air

D

Q.14: Madam Curie did valuable research in?

1. None of them
2. Evaporation
3. Radioactivity
4. Distillation

C

Q.15: Sulphuric acid was discovered by:?

1. Bu Ali Sina
2. Al-Razi
3. Al-Beruni
4. Jabir Bin Hayan

D

Q.16: The information obtained from observation is called?

1. Law
2. Fact
3. Theory
4. Principle

B

Q.17: A hypothesis is tested by:?

1. experiment
2. Comparison with other theories
3. Comparison with scientific laws
4. Observation

A

Q.18: Scientific method comprises ----------- steps.?

1. Four
2. Three
3. Five
4. Two

A

Q.19: Who presented the laws of electrolysis?

1. J.Berzelius
2. Michael Faraday
3. Rutherford
4. Neil Bohr

A

Q.20: Who discovered nitric acid, hydrochloric acid and sulphuric acid?

1. Al-Haitham
2. Al-Razi
3. Jabir Bin Hayan
4. Al-Beruni

C

Q.21: Man started chemical activities by looking at?

1. Respiration
2. Combustion
3. Photosynthesis
4. Condensation

B

Q.22: The Muslim period extends from:?

1. 600\-1600 A.D
2. 200-2000 A.D
3. 800-1300 A.D
4. 100-1000 A.D

A

Q.23: The compounds of what are used in toothpastes to prevent the decay of teeth?

1. Oxides
2. Halides
3. Fluorides
4. Chlorides

C

Q.24: A theory, which gives the same results after repeated experiments become a?

1. Law
2. Truth
3. Fact
4. Hypothesis

A

Q.25: Golden script writing with iron pyrites was introduced by?

1. Ibne Sena
2. Al-Beruni
3. Al-Razi
4. Jabir Bin Hayan

D