Advertisements
Advertisements
प्रश्न
Complete the following word equation:
Calcium + water → calcium hydroxide + _________
Advertisements
उत्तर
Calcium + water → calcium hydroxide + hydrogen
संबंधित प्रश्न
From the knowledge of activity series, name a metal which shows the following properties:
It forms a base which is insoluble in water.
Hydrogen can be prepared with the metal zinc by using: alkali
Give an equation.
Give an equation to express the reaction between:
Calcium and 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?
Write a balanced equation for the reaction named metal with (i) boiling water (ii) steam.
Give a reason for the following.
Hydrogen is collected by the downward displacement of water and not of air, even though it is lighter than air.
Select the odd one out and justify your answer.
Zn, Fe, Mg, and Na
Which metal gives hydrogen with all of the following: water, acids, alkalis?
Choose terms from the options given in brackets to complete this sentence.
Sodium ………………. reacts smoothly with cold water.
(metal, amalgam, in the molten state)
Name the following.
A metal which cannot be used for the preparation of hydrogen using dilute acids.
