Here we are going to provide class 12 chemistry chapter 10 hydrogen solved mcqs that helps Sindh board students in their exam.
12 Class Chemistry Chapter 10 MCQs with Answers
This 2nd year’s chemistry chapter 10 Sindh board mcqs are also helpful for Karachi, Hyderabad, Larkana, and Sukkur board students in their examination preparation.
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12th Class Chemistry Chapter 9 MCQs
1. What is the other name of partial oxidation
a) Oxidation
b) Oxygen reduction
c) Oxygen reforming
d) None of the mentioned
Answer: c) Oxygen reforming
2. Hydrogen can be produced from hydrocarbon by which method
a) Thermal decomposition
b) Partial oxidation
c) Steam reforming
d) All of the mentioned
Answer: d) All of the mentioned
3. Which is the best method for petroleum hydrogenation
a) Thermal decomposition
b) Steam reforming
c) Partial oxidation
d) Catalytic reforming
Answer: b) Steam reforming
4. Which type of reaction is catalytic reaction
a) Endothermic
b) Exothermic
c) Neutral
d) None of the mentioned
Answer: a) Endothermic
5. During cracking of Natural gas, what is produced
a) Carbon
b) Hydrogen
c) Both C and H2
d) None of the mentioned
Answer: c) Both C and H2
6. Chlorine has _______ isotopes.
a) 1
b) 2
c) 3
d) 4
Answer: b) 2
7. __________ are defined as atoms of an element that have the same atomic number but different mass numbers.
a) Mole
b) Isotopes
c) Molecules
d) None of the above
Answer: b) Isotopes
8. Hydrogen has ________ isotopes.
a) 4
b) 2
c) 3
d) 1
Answer: c) 3
9. The U92238 is found in nature nearly _________.
a) 90% pure
b) Impure
c) 99% pure
d) Not present
Answer: c) 99% pure
10. Isotopes of uranium are:
a) U92239, U92238
b) U92234, U92235, U92238
c) U92236, U92237
d) None of the above
Answer: b) U92234, U92235, U92238
Conclusion
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