Advertisements
Advertisements
प्रश्न
The colour of the solution observed after 30 minutes of placing zinc metal in copper sulphate solution is ______.
विकल्प
Blue
Colourless
Dirty green
Reddish Brown
Advertisements
उत्तर
The colour of the solution observed after 30 minutes of placing zinc metal in copper sulphate solution is Colourless.
Explanation:
Since zinc is more reactive than copper, it displaces copper from copper sulphate solution to generate a colourless zinc sulphate solution.
APPEARS IN
संबंधित प्रश्न
Reaction of iron nails with copper sulphate solution is an example of
(a) Combination reaction
(b) Decomposition reaction
(c) Displacement reaction
(d) Double displacement reaction
\[\ce{Fe2O3 + 2Al -> Al2O3 + 2Fe}\]
The above reaction is an example of a ______.
Write the balanced chemical equation for the following and identify the type of reaction.
\[\ce{Magnesium(s) + Hydrochloric acid(aq) -> Magnesium chloride(aq) + Hydrogen(g)}\]
What type of chemical reaction is represented by the following equation?
A + BC → AC + B
What happens when a piece of iron metal is placed in copper sulphate solution? Name the type of reaction involved.
When a strip of red-brown metal X is placed in a colourless salt solution YNO3 then metal Y is set free and a blue coloured salt solution X(NO3)2 is formed. The liberated metal Y forms a shining white deposit on the strip of metal X.
(a) What do you think metal X is?
(b) Name the salt YNO3.
(c) What could be metal Y?
(d) Name the salt X(NO3)2.
(e) What type of reaction takes place between metal X and salt solution YNO3?
Name the type of reaction which is governed by the position of a metal in the metal activity series ?
Explain the terms with examples.
Displacement reaction
- Complete the given chemical reaction:
\[\ce{CuSO4_{(aq)} + Fe_{(s)} ->}\] _______ + _______ - Name the type of the reaction.
Complete the following chemical reaction:
\[\ce{CuSO4 (aq) + Pb (s) -> \underline{}\underline{}\underline{}\underline{}\underline{}\underline{} + \underline{}\underline{}\underline{}\underline{}\underline{}\underline{}}\]
Name the chemical reaction type.
