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Complete and Balance the Following Equations: Al + Naoh + ____ → ____ + ____

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प्रश्न

Complete and balance the following equations:

Al + NaOH + ____ → ____ + ____

एक पंक्ति में उत्तर
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उत्तर

\[\ce{2Al + 2NaOH + 2H2O ->\underset{\text{Sodium metal aluminium}}{2NaAlO2} + 3H2}\]

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अध्याय 6: Study of The First Element - Hydrogen - Exercise

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विराफ जे दलाल Simplified ICSE Chemistry [English] Class 9
अध्याय 6 Study of The First Element - Hydrogen
Exercise | Q 9.1

संबंधित प्रश्न

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

The hydrogen molecule is monovalent.


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. 


Define catalytic hydrogenation.


 Multiple Choice Question

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


 Multiple Choice Question

Hydrogen is


MULTIPLE CHOICE QUESTIONS

Which is the lightest of all elements?

  1. hydrogen
  2. helium
  3. lithium
  4. none of these

FILL IN THE BLANK

In nature, hydrogen occurs as a .................. molecule represented as H2


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

Magnesium with boiling water


How is hydrogen separated from carbon dioxide and carbon monoxide? 


Using a burning candle and a jar of hydrogen – how would you prove experimentally that Hydrogen does not support combustion.


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.


Explain the following:

Two jars of H2 are collected – “one burns quietly and the other does not”.


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 → ?


How would you obtain ‘hydrogen from sodium hydroxide’ solution other than by electrolysis?


What do the following symbols represent : 2H and H2.


Write balanced equation of the reaction in the preparation of : hydrogen from a solution of potassium hydroxide [other than by electrolysis].


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