English

Give Balanced Equation for Obtaining Hydrogen from Cold Water Using a Monovalent Active Metal. - Chemistry

Advertisements
Advertisements

Question

Give balanced equation for obtaining hydrogen from cold water using a monovalent active metal.

One Line Answer
Advertisements

Solution

Monovalent active metal Na:

2Na + 2H2O → 2NaOH + H2

shaalaa.com
Hydrogen
  Is there an error in this question or solution?
Chapter 6: Study Of The First Element — Hydrogen - Additional Questions

APPEARS IN

Viraf J. Dalal Simplified ICSE Chemistry [English] Class 9
Chapter 6 Study Of The First Element — Hydrogen
Additional Questions | Q 4.1

RELATED QUESTIONS

Indicate which of the following statement is true and which is false:

The hydrogen molecule is monovalent.


 Give reason for the following:

Helium replaced hydrogen in weather observation balloons?


Define catalytic hydrogenation.


 Multiple Choice Question

 Equal volumes of hydrogen and chlorine are exposed to diffused sunlight to prepare


FILL IN THE BLANK

Ammonia is used to make ................


Write the balanced equation and give your observation when the following metal reacts:

Sodium with cold water


Give the balanced equation of the reaction.


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.


Give equations for the reactions.


How is hydrogen separated from carbon dioxide and carbon monoxide? 


Give reason for the following:

The reaction of chlorine with hydrogen sulphide is deemed a redox reaction.


Write a correctly balanced equation for the following “word equation”:
calcium + water → calcium hydroxide + 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’.


Describe one chemical test applied to the following gases, which would enable you to distinguish between them :‘carbon monoxide and hydrogen’.


Write down the “word equation” for the following reaction:

sodium hydroxide solution + zinc → ?


Give balanced equation for obtaining hydrogen from cold water using a divalent active metal.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×