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प्रश्न
Multiple Choice Question
Hydrogen is
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उत्तर
- neither supporter nor combustible
- combustible
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संबंधित प्रश्न
Hydrogen is a good reducing agent: What do you understand by the above statement? Explain with the help of copper oxide as an example.
State four uses of hydrogen:
FILL IN THE BLANK
The compounds of carbon and hydrogen are called .................
Write the balanced equation and give your observation when the following metal reacts:
Sodium with cold water
Choose terms from the options given in brackets to complete this sentence.
A metal …………….. hydrogen in the activity series gives hydrogen with …………… acid or …………… acid.
(above, below, dilute hydrochloric, concentrated hydrochloric, dilute sulphuric).
Correct the following statement:
Hydrogen is dried by passing it through conc. H2SO4.
Select the correct options for the following statement:
The gas which has now replaced hydrogen in air balloons is ___.
Write balanced equation for the following reaction:
magnesium + dil. hydrochloric acid → ___
What do you observe when a piece of sodium is dropped into cold water?
Select the correct answer from the symbol in the bracket.
The element, which like hydrogen has one valence electron.
