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प्रश्न
Fill in the following blank with suitable word:
Magnesium liberates ............... gas on reacting with hot boiling water.
उत्तर
Magnesium liberates hydrogen gas on reacting with hot boiling water.
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संबंधित प्रश्न
You must have seen tarnished copper vessels being cleaned with lemon or tamarind juice. Explain why these sour substances are effective in cleaning the vessels.
The reaction of an iron nail with copper sulphate solution is ........... reaction.
(a) Combination
(b) Displacement
(c) Double displacement
(d) Decomposition
Why does aluminium not react with water under ordinary conditions?
Name another metal oxide which behaves like aluminium oxide.
An element X forms two oxides XO and XO2. The oxide XO has no action on litmus solution but oxide XO2 turns litmus solution red.
(a) What is the nature of oxide XO?
(b) What is the nature of oxide XO2?
(c) Would you call element X a metal or a non-metal? Give reason for your choice.
(d) Can you give an example of element like X?
In a solution of lead acetate, a strip of metal M was dipped. After some time, lead from the solution was deposited on the metal strip. Which metal is more reactive, M or lead?
What are noble gases
Choose the correct alternative and rewrite the following:
Which of the following is lue in colour?
Where does the metal aluminium, used in the process, occurs in the reactivity series of metals?
Which one among the following is an acidic oxide?
