Advertisements
Advertisements
Question
Write the balanced equation and give your observation when the following metal reacts:
Magnesium with boiling water
Advertisements
Solution
Magnesium reacts slowly with boiling water and forms a base, magnesium hydroxide, liberating hydrogen gas.
\[\ce{Mg + 2H2O →Mg(OH)2 + H2 \uparrow}\]
APPEARS IN
RELATED QUESTIONS
Hydrogen is combustible as well as a supporter of combustion.
Indicate which of the following statement is true and which is false:
Hydrogen gas is easily liquefiable.
State four uses of hydrogen:
Multiple Choice Question
Equal volumes of hydrogen and chlorine are exposed to diffused sunlight to prepare
MULTIPLE CHOICE QUESTIONS
Which is the lightest of all elements?
- hydrogen
- helium
- lithium
- none of these
Choose the correct option:
The composition of the nucleus of deuterium is
Using a burning candle and a jar of hydrogen – how would you prove experimentally that Hydrogen is a combustible gas.
Using a burning candle and a jar of hydrogen – how would you prove experimentally that Hydrogen does not support combustion.
With reference to the equation : Cl2 + H2S → 2HCl + S pertaining to a redox reaction – select the correct answer.
Chlorine is ______ to HCl.
With reference to the equation : Cl2 + H2S → 2HCl + S pertaining to a redox reaction – select the correct answer.
Hydrogen sulphide is ______ to sulphur since the reaction involves ______ of hydrogen.
Give balanced equation for the following conversion:
Iron [III] oxide to iron – using hydrogen.
Write a correctly balanced equation for the following:
When steam is passed over red hot iron.
Write correctly the balanced equation for the following:
‘When zinc filings are added to a concentrated solution of sodium hydroxide’.
Write down the “word equation” for the following reaction:
sodium hydroxide solution + zinc → ?
What do you observe when a piece of sodium is dropped into cold water?
How would you obtain ‘hydrogen from sodium hydroxide’ solution other than by electrolysis?
Write balanced equation of the reaction in the preparation of : hydrogen from a solution of potassium hydroxide [other than by electrolysis].
Give balanced equation for obtaining hydrogen from cold water using a divalent active metal.
Select the correct answer from the symbol in the bracket.
The element, which like hydrogen has one valence electron.
