Advertisements
Advertisements
प्रश्न
Give a chemical test to distinguish between the following gases:
Hydrogen and oxygen
Advertisements
उत्तर
Hydrogen: Bums with a pale-blue flame when a burning splint is brought near it.
Oxygen: The gas turns an alkaline solution of pyrogallol dark brown.
APPEARS IN
संबंधित प्रश्न
Complete and balance the following equation:
H2+____________→ 2HCI
Multiple Choice Question
Hydrogen is responsible for producing
Multiple Choice Question
Hydrogen is
FILL IN THE BLANK
In nature, hydrogen occurs as a .................. molecule represented as H2
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:
Magnesium with steam
Choose the correct option:
The composition of the nucleus of deuterium is
How is hydrogen separated from carbon dioxide and carbon monoxide?
Give a test to differentiate between two gas jars – one containing pure hydrogen and the other hydrogen-air mixture.
With reference to the equation : Cl2 + H2S → 2HCl + S pertaining to a redox reaction – select the correct answer.
Chlorine is ______ to HCl.
Give balanced equation for the following conversion:
Iron [III] oxide to iron – using hydrogen.
Select the correct options for the following statement:
The gas which has now replaced hydrogen in air balloons is ___.
Write a correctly balanced equation for the following “word equation”:
calcium + water → calcium hydroxide + hydrogen
When steam is passed over red-hot iron, magnetic oxide of iron and hydrogen are obtained. “The reaction between steam and red-hot iron is a Reversible Reaction.” What is meant by this statement.
How can you obtain hydrogen from sodium hydroxide [not by electrolysis].
Write balanced equation for the following reaction:
magnesium + dil. hydrochloric acid → ___
Explain the following:
Two jars of H2 are collected – “one burns quietly and the other does not”.
Complete and balance the following equations:
Al + NaOH + ____ → ____ + ____
Describe briefly, with equations, the Bosch Process for the large scale production of hydrogen.
