12th Chemistry One Mark Questions 2022
Chemistry is the branch of science concerned with the substances of which matter is composed, the investigation of their properties and reactions, and the use of such reactions to form new substances. As per the 12th Class exam pattern, one mark is questioned asked in the board exam for 20 marks. So, candidates must prepare these questions to score good marks.
Chemistry is a branch of science that is the study of matter and what it consists of, its properties, changes, and chemical reactions between substances. It is often referred to as a central part of science as it studies a whole range of science subjects with the application of physics and mathematics, earth and environment, biology, and medicine. Chemistry studies all kinds of essential core subjects in science and students are involved in conducting lab research and tests, which makes learning more effective and exciting. In India, the Indian Institute of Technology (IITs) is one of the most prestigious universities to pursue chemistry among many universities.
12th Chemistry One Mark Questions with Answers
- Lesson 1 Chemistry One Mark Question and Answers – Click Here
- Lesson 2 Chemistry One Mark Question and Answers – Click Here
- Lesson 3 Chemistry One Mark Question and Answers – Click Here
- Lesson 4 Chemistry One Mark Question and Answers – Click Here
- Lesson 5 Chemistry One Mark Question and Answers – Click Here
- Lesson 6 Chemistry One Mark Question and Answers – Click Here
- Lesson 7 Chemistry One Mark Question and Answers – Click Here
- Lesson 8 Chemistry One Mark Question and Answers – Click Here
- Lesson 9 Chemistry One Mark Question and Answers – Click Here
- Lesson 10 Chemistry One Mark Question and Answers – Click Here
- Lesson 11 Chemistry One Mark Question and Answers – Click Here
- Lesson 12 Chemistry One Mark Question and Answers – Click Here
- Lesson 13 Chemistry One Mark Question and Answers – Click Here
- Lesson 14 Chemistry One Mark Question and Answers – Click Here
- Lesson 15 Chemistry One Mark Question and Answers – Click Here
12th Chemistry One Mark Question 2022
Bauxite has the composition
a) Al2O3 b) Al2O3.nH2O c) Fe2O3.2H2O d)None of these
Roasting of sulphide ore gives the gas (A).(A) is a colourless gas. Aqueous solution of (A) is acidic. The gas (A) is
a)CO2 b)SO3 c)SO2 d)H2S
Which one of the following reaction represents calcinations?
a) 2Zn + O2 → 2ZnO b) 2ZnS + 3O2 → 2ZnO + 2SO2
c) MgCO3 → MgO + CO2 d) Both (a) and (c)
The metal oxide which cannot be reduced to metal by carbon is
a) PbO b) Al2O3 c) ZnO d) FeO
Which of the metal is extracted by Hall-Herold process?
a) Al b) Ni c) Cu d) Zn
Which of the following statements, about the advantage of roasting of sulphide ore before reduction is not true?
a) ΔGf o of sulphide is greater than those for CS2 and H2S .
b) ΔGr o is negative for roasting of sulphide ore to oxide
c) Roasting of the sulphide to its oxide is thermodynamically feasible.
d) Carbon and hydrogen are suitable reducing agents for metal sulphides
You can download the 12th Chemistry One Mark Questions 2022 PDF using the link given below.