Advertisements
Advertisements
प्रश्न
Divide the metals Cu, Zn, Ca, Mg, Fe, Na, Li into three groups, namely reactive metals, moderately reactive metals and less reactive metals.
Advertisements
उत्तर
| Reactive metals | Moderately reactive metals | Less reactive metals |
| Ca | Fe | Cu |
| Na | Zn | |
| Li | Mg |
APPEARS IN
संबंधित प्रश्न
What do you observe when ferrous sulphate solution is added to an aqueous solution of sodium hydroxide.
How will you obtain Magnesium oxide from magnesium.
Also give balanced equations for the reactions
How will you obtain Silver chloride from silver nitrate.
Also give balanced equations for the reactions
What is meant by the metal reactivity series ? State its importance, (any two points).
Write the chemical equation for the event.
A reaction was brought about between ferric oxide and aluminium.
Write chemical equation for the event.
Electrolysis of alumina is done.
Write a chemical equation for the following event.
Zinc oxide is dissolved in dilute hydrochloric acid.
State what is meant by the ‘reactivity series of metals’
Select the correct answer for the statement given below:
The catalyst used in the catalytic reaction involving the reactants nitrogen and hydrogen.
Complete the statement by filling in the blank with the correct word:
The metal which reacts with steam and the reaction is reversible is ________.
Give a balanced equation for the following type of reaction:
A displacement reaction in which a metal above hydrogen in the reactivity series, displaces another metal from the solution of its compound.
In preparation of Aqua regia hydrochloric acid and _______ acid are mixed.
Explain the following reaction with the balanced equation.
Sulphur burns in air
A metal that exists as a liquid at room temperature is obtained by heating its sulphide in the presence of air. Identify the metal and its ore and give the reaction involved.
An element A reacts with water to form a compound B which is used in white washing. The compound B on heating forms an oxide C which on treatment with water gives back B. Identify A, B and C and give the reactions involved.
A metal M does not liberate hydrogen from acids but reacts with oxygen to give a black colour product. Identify M and black coloured product and also explain the reaction of M with oxygen.
Of the three metals X, Y and Z. X reacts with cold water, Y with hot water and Z with steam only. Identify X, Y and Z and also arrange them in order of increasing reactivity.
An element A burns with golden flame in air. It reacts with another element B, atomic number 17 to give a product C. An aqueous solution of product C on electrolysis gives a compound D and liberates hydrogen. Identify A, B, C and D. Also write down the equations for the reactions involved.
