Advertisements
Advertisements
प्रश्न
Hydrogen can be prepared with the metal zinc by using: alkali
Give an equation.
Advertisements
उत्तर
Zn + 2NaOH → Na2ZnO2 + H2
APPEARS IN
संबंधित प्रश्न
From the knowledge of activity series, name a metal which shows the following properties:
It displaces hydrogen from hot water.
From the knowledge of activity series, name a metal which shows the following properties:
It displaces hydrogen from dilute HCl.
Hydrogen can be prepared with the metal zinc by using:
acid
Give an equation.
Which metal is preferred for collecting hydrogen from Cold water? Write the balanced equation.
Which metal is preferred for collecting hydrogen from:
Write the balanced equation
Hot water
Based on the reactions of water on metals, arrange the following metals in increasing order of reactivity: iron, sodium, magnesium, zinc, calcium
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?
Metal in the powdered form reacts very slowly with boiling water, but it decomposes in steam. Name the metal.
Write a balanced equation for the reaction named metal with (i) boiling water (ii) steam.
Using dilute sulphuric acid how would you differentiate between:
Copper and magnesium
How would you identify the gaseous products evolved.
