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प्रश्न
Name two metals which can, however, liberate hydrogen gas from very dilute nitric acid.
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उत्तर
- Magnesium
- Manganese
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संबंधित प्रश्न
_________ solution is blue in colour.
(a) CuSO4
(b) FeSO4
(c) ZnSO4
(d) Al2(SO4)3
‘E’ is an element which reacts with oxygen to form an oxide E2O. An aqueous solution of E2O turns red litmus blue, so:
i. What is the nature of oxide E2O ?
ii. Write the name of element ‘E’.
State whether the following statement is true or false:
Non-metals react with dilute acids to produce a gas which burns with a ‘pop’ sound.
What will happen if a strip of copper is kept immersed in a solution of silver nitrate (AgNO3)?
How would you show that silver is chemically less reactive than copper?
Give one example, with equation, of the displacement of hydrogen by a metal from an acid.
What is the action of water on sodium? Write the equation of the chemical reaction involved.
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.
What is meant by the reactivity series of metals?
Hydrogen is not a metal but still it has been assigned a place in the reactivity series of metals. Why?
One of the following is not a neutral oxide. This is:
An acidic oxide is produced by the element ______.
The elements whose oxides can turn litmus solution blue are ______.
\[\ce{CuSO4_{(aq)} + Fe_{(s)} -> FeSO4_{(aq)} + Cu_{(s)}}\]
\[\ce{FeSO4_{(aq)} + Zn_{(s)} -> ZnSO4_{(aq)} + Fe_{(s)}}\]
On the basis of the above reactions, indicate which is most reactive and which is least reactive metal out of zinc, copper and iron.
Name a metal for the given case:
It does not react with any physical state of water.
Choose the correct alternative and rewrite the following:
Reaction of iron nails whith copper sulphate solution is an example of _____________________
Arrange the following metals in the increasing order of their reactivities:
Copper, Zinc, Aluminium, and Iron
An alkali metal A gives a compound B (molecular mass = 40) on reacting with water. The compound B gives a soluble compound C on treatment with aluminium oxide. Identify A, B and C and give the reaction involved.
Find the odd one out:
