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प्रश्न
What will happen if a strip of copper is kept immersed in a solution of silver nitrate (AgNO3)?
उत्तर
If a strip of copper is kept immersed in a solution of silver nitrate, the solution gradually becomes blue due to the formation of copper nitrate and a shiny greyish-white deposit of silver is formed on the copper strip.
2AgNO3(aq) + Cu(s) → Cu(NO3)2(aq) + 2Ag(s)
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संबंधित प्रश्न
A student added few pieces of aluminium metal to two test tubes A and B containing aqueous solutions of iron sulphate and copper sulphate. In the second part of her experiment, she added iron metal to another test tubes C and D containing aqueous solutions of aluminium sulphate and copper sulphate.
In which test tube or test tubes will she observe colour change? On the basis of this experiment, state which one is the most reactive metal and why.
Which of the following elements would yield an acidic oxide.
Na, S, C, K, H
Hydrogen is not a metal but still it has been assigned a place in the reactivity series of metals. Why?
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(a) CO
(b) H2O
(c) N2O
(d) Na2O
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(a) Magnesium
(b) Zinc
(c) Gold
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(b) CuSO4 (aq) + Fe (s) → FeSO4 (aq) + Cu (s)
(c) MgSO4 (aq) + Fe (s) → FeSO4 (aq) + Mg (s)
Write the name and formula of a molecule made up of three atoms of oxygen.
Choose the correct alternative and rewrite the following:
Which of the following is lue in colour?
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?
