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प्रश्न
State why hydrogen is not prepared in the laboratory by the action of calcium with dilute sulphuric acid.
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उत्तर
It is not possible to produce hydrogen in a laboratory by reacting calcium with diluted sulfuric acid since the reaction is extremely explosive and practically impossible.
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संबंधित प्रश्न
Write a balanced equation for the following:
Iron reacts with dil. HCl
From the knowledge of activity series, name a metal which shows the following properties
It reacts readily with cold water
Hydrogen can be prepared with the metal zinc by using: alkali
Give an equation.
Which metal is preferred for collecting hydrogen from steam? Write the balanced equation for the case.
Name two alkalies that can displace hydrogen. Give balanced equations for the same. Why are the metals you have used considered to have a unique nature?
Which metal gives hydrogen with all of the following: water, acids, alkalis?
Using dilute sulphuric acid how would you differentiate between:
Copper and magnesium
How would you identify the gaseous products evolved.
Name the following.
A metal below iron but above copper in the activity series of metals which has no reaction with water.
Name the following.
A metal which cannot be used for the preparation of hydrogen using dilute acids.
Name the following.
The salt formed when aluminium reacts with potassium hydroxide, during the preparation of hydrogen from alkalis.
