मराठी

Write Down the “Word Equation” for the Following Reaction: Sodium Hydroxide Solution + Zinc → ?

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प्रश्न

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

sodium hydroxide solution + zinc → ?

एका वाक्यात उत्तर
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उत्तर

‘Word equation’
Sodium hydroxide + zinc → Sodium zincate + hydrogen

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

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विराफ जे. दलाल Simplified ICSE Chemistry [English] Class 9
पाठ 6 Study of The First Element - Hydrogen
Exercise | Q 5.1

संबंधित प्रश्‍न

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. 


Complete and balance the following equation:

H2+____________→ 2HCI


 Give reason for the following:

Helium replaced hydrogen in weather observation balloons?


State four uses of hydrogen: 


MULTIPLE CHOICE QUESTIONS

The name hydrogen was given by

  1. Cavendish
  2. Lavoisier
  3. Haber
  4. none of these

FILL IN THE BLANK

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


FILL IN THE BLANK

Hydrogen is present abundantly in the ................


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


Give balanced equation for the following conversion:

Nitrogen to a basic gas – using hydrogen.


Select the correct options for the following statement:

The gas which has now replaced hydrogen in air balloons is ___.


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].


Explain the following:

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


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


Complete and balance the following equations:

Al + NaOH + ____ → ____ + ____


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.


Give a reason for the following.

A mixture of hydrogen and chlorine can be separated by passage through a porous pot.


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