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Which of the following is true...

Which of the following is true__________

A

hydrogen is the lightest gas

B

hydrogen is heavier than air

C

oxygen is lighter than air

D

hydroge is equal to air in weight

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Given A,B,C are three sets. State which of the followings are true____

JNAN PUBLICATION-KNOW ABOUT SOME COMMON GASES (OXYGEN AND HYDROGEN)-EXAMPLE
  1. Oxygen is

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  2. Water is made up of

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  3. Which of the following is true

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  4. Which of the following fertilizer?

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  5. Which of the following is chemical propertiy of hydrogen?

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  6. Which of the following material is required for preparation of hydroge...

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  7. State whether True or False:- Oxygen is slightly heavier than air.

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  8. State whether True or False:- Atomic oxygen is a powerful oxidizing ...

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  9. State whether True or False:- Hydrogen is indispensable in manufactu...

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  10. State whether True or False:- Oxygen is completely soluble in water.

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  11. State whether True or False:- Oxygen can combine directly with most ...

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  12. State whether True or False:- Hydrogen is heavier than air.

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  13. State whether True or False:- Hydrogen is used in production of ammo...

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  14. State whether True or False:- A woulfe bottle is necessary for prepa...

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  15. State whether True or False:- Hydrogen gas does not help in burning.

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  16. State whether True or False:- Manganese dioxide is required for prep...

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  17. Fill in the blanks: Hydrogen is necessary in many industries.

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  18. The industrial world gets its requirement of oxygen from .

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  19. State whether True or False:- Aluminium reacts with oxygen and produ...

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  20. Fill in the blanks:- Colourless nitric oxide gas is oxdized to brown...

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