Advertisements
Advertisements
Question
Name the following:
Two metals which give hydrogen with cold water.
Advertisements
Solution
Sodium (Na) and Potassium (K) give hydrogen with cold water.
APPEARS IN
RELATED QUESTIONS
TRUE \ FALSE
reacts with hot water to form copper oxide and hydrogen.
What is noticed if the products are not allowed to escape?
Complete and balance the following reaction.
Na + H2O →_____________ +___________
Correct the following statement:
Hydrogen is separated from CO by passing the mixture through caustic potash solution.
Give reason for the following:
In the preparation of hydrogen by electrolysis of water – the distilled water used is acidified.
Complete and balance the equation:
[General method]
Reactions of active metals - cold water
Potassium- K + H2O → ______+ ______ [g]
Complete and balance the equation:
[General method]
Reactions of metals - alkali [conc. soln.]
Zinc - Zn + 2NaOH → ______ + _______ [g]
Zn + 2KOH → ____ + _____ [g]
Name an element whsich reacts violently with water at room temperature.
Give a balanced equation for obtaining hydrogen from?
Steam using a metal – and the reaction is reversible.
Give a balanced equation for the following conversion.
\[\ce{ZnO<-H2O->Fe3O4}\]
