Answer : The correct option is,
Explanation :
Displacement reaction : It is a chemical reaction in which a most reactive element displaces the least reactive element easily from its compound.
In this, A is more reactive element and B is less reactive element.
The given balanced chemical reaction will be,
In this reaction, calcium displace the zinc element easily because calcium is more reactive element than the zinc.
Answer:
D. H2SO4
Explanation:
The chemical formula of a compound is an expression that stares out the elements (in form of symbols)present in a compound and the number of the atoms.
In the image;
There is one sulphur (S) atom, 4 oxygen(O) atoms and 2 hydrogen (H) atoms
The chemical formula is;
H2SO4.
The correct option is option D.
