Chemical processes

Total Questions: 15

1 - Breaking water of up by separating with it hydrogen and oxygen is called------:
A ) Displacement
B ) Electrolysis ✅
C ) Combination
D ) Redox

2 - The water escapes from surface of water is-----:
A ) Evaporation ✅
B ) Condensation
C ) Sublimation
D ) None of these

3 - When a gas is turned into a liquid the process is known as-----?
A ) Condensation ✅
B ) Sublimation
C ) Evaporation
D ) Deposition

4 - What is the method used to purify water?

A ) Filtration ✅
B ) Sublimation
C ) Extraction
D ) None of these

5 - The process were s solid Converts directly into a gas without becoming a liquid is called?

A ) Melting
B ) Sublimation ✅
C ) Condensation
D ) Freezing

6 - The process by which a substance absorbs moisture upon exposure to the atmosphere is called?

A ) Dehydrogenation
B ) Efflorescence
C ) Deliquescence ✅
D ) Desalination

7 - The structural and functional unit of the environment---:
A ) Biome
B ) Ecosystem ✅
C ) Biosphere
D ) None of these

8 - The first process in petroleum refinery is known as-----:
A ) Improve octane number
B ) Distillation ✅
C ) Oxidation
D ) None of these

9 - Cooking oil can be converted into vegetable ghee by the process of-----:
A ) Hydrogenation ✅
B ) Distillation
C ) Oxidation
D ) Crystallization

10 - مارجرین کی سمن میں تیار ہوتی ہے؟
A ) فرمنٹیشن
B ) کنڈنسیشن
C ) ہائیڈروجینیشن ✅
D ) ایتھر یفکیشن

11 - What is the name of place where leather is tanned?

A ) Tannery ✅
B ) Distillery
C ) Foundry
D ) Mill

12 - Which process is used to purify water by boiling it and then condensing the vapor?

A ) Filtration
B ) Sedimentation
C ) Distillation ✅
D ) Reverse osmosis

13 - What is the process by which water vapour turns into ice directly?

A ) Evaporation
B ) Freezing
C ) Deposition ✅
D ) Condensation

14 - Which process is used for separating components of a mixture by exploiting their different solubilities?

A ) Chromatography ✅
B ) Distillation
C ) Filtration
D ) Sedimentation

15 - The process of drying a substance by removing moisture from it is called-----?
A ) Dehydration ✅
B ) Sublimation
C ) Evaporation
D ) Condensation
Past Papers
PPSC 2025 Past Papers
PPSC Past Papers
NTS Past Papers
FPSC Past Papers
Lecture PPSC Past Papers
Punjab Police PPSC Past Papers
PMS Past Papers
IB Past Papers
Junior Clerk PPSC Past Papers
PPSC 2024 Past Papers
PPSC 2023 Past Papers
Pakistan Study Past Paper 2024
Geography Past Paper 2024
Ziladar Past Papers
Assistant Past Papers
OTS Past Papers
MCQs
Current Affairs MCQs
General Knowledge MCQs
English MCQs
Computer MCQs
Biology MCQs
Physics MCQs
Chemistry MCQs
Pak Study MCQs
Geography Topic Wise MCQ
Pakistan Study Topic Wise MCQ
General Knowledge Topic Wise MCQ
Everyday Science Topic Wise MCQ
Computer Science Topic Wise MCQ
English Topic Wise MCQ
Electrical Engineering MCQs
History of Pakistan MCQs
Sports MCQs
Economics MCQs
Abbreviation MCQs
World Record MCQs
Everyday Science MCQs
Urdu MCQs
Pedagogy MCQs
Educators
General Knowledge MCQs for Educators
Pakistan Affairs MCQs for Educators
Geography MCQs for Educators
Islamic Studies MCQs for Educators
Everyday Science MCQs for Educators
Computer MCQs for Educators
English MCQs for Educators
Current Affair MCQs for Educators
Mathematics MCQs for Educators
Urdu MCQs for Educators
Pedagogy MCQs for Educators
Head Teacher Preparation SED