What is the main function of the alveoli in the lungs? (PYQ:2007)
Anonymous Quiz
73%
Exchange of gases
12%
Pumping blood
8%
Absorption of nutrients
6%
Filtering blood
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Which of the following structures is responsible for the transport of water in plants? (PYQ:2006)
Anonymous Quiz
18%
Phloem
73%
Xylem
5%
Chloroplast
4%
Stomata
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Which of the following is the main excretory product in humans? (PYQ:2005)
Anonymous Quiz
68%
Urea
17%
Carbon dioxide
8%
Water
8%
Ammonia
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Which of the following is involved in the process of exhalation? (PYQ:2004)
Anonymous Quiz
47%
Diaphragm relaxes
27%
Diaphragm contracts
19%
Lungs expand
7%
Rib cage lifts up
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Which of the following hormones regulates blood sugar levels? (PYQ:2003)
Anonymous Quiz
12%
Adrenaline
14%
Thyroxine
65%
Insulin
9%
Glucagon
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Today's test completed. Be ready for the next test tomorrow.
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Science sample paper with solution - total 10 sample papers
https://acadpills.com/class-10-science-sample-papers-2024-25-with-solutions/
https://acadpills.com/class-10-science-sample-papers-2024-25-with-solutions/
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In a double displacement reaction such as reaction b/w sodium sulphate solution & barium chloride solution
I. Exchange of atoms take place
II. Exchange of ions take place III. A precipitate is produced IV. An insoluble salt is produced correct option is:
I. Exchange of atoms take place
II. Exchange of ions take place III. A precipitate is produced IV. An insoluble salt is produced correct option is:
Anonymous Quiz
23%
(I) and (III)
21%
(I) and (IV)
18%
Only (II0
38%
(II), (III) and (IV)
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When hydrogen sulphide gas is passed through a blue solution of copper sulphate, a black precipitate of copper sulphide is obtained, and the sulphuric acid so formed remains in the solution. The reaction is an example of a:
Anonymous Quiz
17%
Combination reaction
33%
Displacement reaction
17%
Decomposition reaction
33%
Double displacement reaction
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To burn natural gas, we need to supply some amount of heat. Which of the following is correct regarding burning of natural gas?
Anonymous Quiz
32%
It produces hydrogen gas
10%
It produces sulphuric acid
23%
It is an endothermic process
34%
It is an exothermic process
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