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प्रश्न
Choose terms from the options given in brackets to complete this sentence.
Sodium ………………. reacts smoothly with cold water.
(metal, amalgam, in the molten state)
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उत्तर
Sodium amalgam reacts smoothly with cold water.
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संबंधित प्रश्न
Hydrogen can be prepared with the metal zinc by using: alkali
Give an equation.
Give an equation to express the reaction between:
Steam and red hot iron
Give an equation to express the reaction between:
Calcium and water
Choose the correct option:
Hydrogen is evolved by the action of cold dil. HNO3 on
Which metal is preferred for collecting hydrogen from:
Write the balanced equation
Hot water
Hydrogen is obtained by displacement from:
- dilute sulphuric acid
- dilute hydrochloric acid
Write equations using zinc and iron.
Why does copper not show similar behavior?
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?
Correct the following statement:
Conc. H2SO4 reacts with zinc to liberate hydrogen.
Using dilute sulphuric acid how would you differentiate between:
Sodium sulphide and sodium carbonate.
How would you identify the gaseous products evolved.
