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प्रश्न
A metal less reactive and another metal more reactive than hydrogen are ______.
पर्याय
aluminium and lead
iron and magnesium
copper and tin
copper and mercury
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उत्तर
A metal less reactive and another metal more reactive than hydrogen are copper and tin.
Explanation:
According to the reactivity series, copper lies below hydrogen, meaning it is less reactive and cannot displace hydrogen from water or acids. Conversely, tin lies above hydrogen in the reactivity series, making it more reactive and capable of displacing hydrogen. In the other options, the metals are either both more reactive (aluminium, lead, iron, magnesium) or both less reactive (copper, mercury) than hydrogen.
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संबंधित प्रश्न
Iron is
(a) More reactive than zinc
(b) More reactive than aluminium
(c) Less reactive than copper
(d) Less reactive than aluminium
Which gas is produced when dilute hydrochloric acid is added to a reactive metal?
Give reasons why copper is used to make hot water tanks and not steel (an alloy of iron).
Explain the following reaction with the help of a balanced chemical equation:
Magnesium reacts with hot water.
What name is given to those metal oxides which show basic as well as acidic behaviour?
What type of oxides are formed when metals combine with oxygen? Explain with the help of an example.
What special name is given to substances like aluminium oxide?
What happens when a metal reacts with dilute hydrochloric acid? Explain with the help of an example.
Write the equation for the reaction of:
Aluminium with dilute hydrochloric acid.
Name the products formed in the given case. Also indicate the physical states of all the substances involved.
Write the equation for the reaction of:
Zinc with dilute hydrochloric acid.
Name the products formed in the given case. Also indicate the physical states of all the substances involved.
The elements whose oxides can turn phenolphthalein solution pink are ______.
The elements whose oxides can turn litmus solution red are ______.
Calcium floats over water during the reaction with water. Give reason.
Explain the following:
Reactivity of aluminium decrease if it is dipped in nitric acid.
Which property of metals is used for making bells and strings of musical instruments like Sitar and Violin?
Aluminium is used for making cooking utensils. Which of the following properties of aluminium are responsible for the same?
- Good thermal conductivity
- Good electrical conductivity
- Ductility
- High melting point
Metals are generally solid. Which of the following metals is in the liquid state at room temperature?
Find the odd one out:
Why is acidified water considered to be a good conductor of electricity?
