Advertisements
Advertisements
प्रश्न
Select the odd one out and justify your answer.
Fe, Zn, Cu and Mg
Advertisements
उत्तर
Cu
Metals more reactive than hydrogen can displace it from acids.
APPEARS IN
संबंधित प्रश्न
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
Choose the correct option:
Hydrogen is evolved by the action of cold dil. HNO3 on
Which metal is preferred for collecting hydrogen from Cold water? Write the balanced equation.
Which metal is preferred for collecting hydrogen from steam? Write the balanced equation for the case.
Based on the reactions of water on metals, arrange the following metals in increasing order of reactivity: iron, sodium, magnesium, zinc, calcium
Metal in the powdered form reacts very slowly with boiling water, but it decomposes in steam. Name the metal.
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.
Fe, Pb, Al and Zn
What do you observe when dilute sulphuric acid is added to Zinc granules.
