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When air is blown from mouth into a test...

When air is blown from mouth into a test - tube containing lime water, the lime water turned milky due to the presence of

A

oxygen

B

cabon dioxide

C

nitrogen

D

water vapour

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The correct Answer is:
B
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Assertion (A) : When we blow into a test - tube containing lime water ,it turns milky Reason (R ) : This shows the presence of CO_(2) in the exhaled air .

CO_2 turns lime water milky, due to the formation of

Lime water contains

The gas that turns lime water milky is

A solution of salt in HCl when diluted with water turns milky. It indicates the presence of

When is passed through fresh lime water, it turns milky.

LAKHMIR SINGH & MANJIT KAUR-LIFE PROCESSES-Exercise
  1. Which of the following increase in muscle cells when they are lacking ...

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  2. Internal respiration may be defined as:

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  3. When air is blown from mouth into a test - tube containing lime water,...

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  4. Which is the correct sequence of air passage during inhalation?

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  5. Lack of oxygen in muscles often leads to cramps among cricketers. This...

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  6. Which of the following statements (s) is (are) correct ? (i) Pyruv...

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  7. Which of the following statements are true about respiration ? (i) d...

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  8. Energy currency (reservior) of the cells is

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  9. The two organisms which breathe only through their moist skin are

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  10. One of the following animals does not use tracheae as the respiratory ...

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  11. The pholosynthesis in a plant is not taking place during the day time ...

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  12. The breathing and respiration in woody stem of a plant takes place thr...

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  13. One of the following organisms does not depend on simple diffusion of ...

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  14. During marathon, we somethimes get painful contractions of leg muscles...

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  15. In cockroaches, air enters the body through:

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  16. A, B and C are three living organisms. The organism A is a unicellulla...

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  17. There are five animals P, Q, R, S and T. The animal P always lives in ...

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  18. Some sugar solution is taken in a test-tube and a little of substance ...

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  19. Consider the following chemical reactions which take place in differen...

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  20. When a person breathers in air, the air enters into his body through a...

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