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प्रश्न
Complete the statement by filling in the blank with the correct word:
The metal which reacts with steam and the reaction is reversible is ________.
विकल्प
calcium
iron
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उत्तर
The metal which reacts with steam and the reaction is reversible is iron.
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संबंधित प्रश्न
Give one example each of which illustrates the following characteristics of a chemical reaction:
evolution of a gas
What do you observe when a few pieces of iron are dropped in a blue solution of copper sulphate?
What do you observe when ferrous sulphate solution is added to an aqueous solution of sodium hydroxide.
Write chemical equation for the event.
Iron filings are dropped in aqueous solution of copper sulphate.
Write the chemical equation for the event.
A reaction was brought about between ferric oxide and aluminium.
Explain the following reaction with the balanced equation.
Magnesium reacts with dil HCl
Compound X and aluminium are used to join railway tracks.
- Identify the compound X
- Name the reaction
- Write down its reaction.
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.
Metal ‘A’ has electronic configuration 2, 8, 1 and metal ‘B’ has electronic configuration 2, 8, 8, 2. Out of these, which metal is more reactive? Write the reaction of this metal with dilute HCl acid.
Arrange the following as per the instruction given in the bracket:
Al, K, Mg, Ca (decreasing order of its reactivity)
