Which of the following is a single replacement reaction?
a. 2so2 + o2 —> 2s03
b. zn + cu(no3)2 → zn(no3)2 + cu
c. 2h2o2–> 2h2o + o2
d . agno3 + nacl → agcl + nano3

The answer to your question is: letter B.

Explanation:

A single replacement reaction is when one metal replaces the cation of another reactant.

a. 2SO2 + O2 —> 2S03                          This is a combination reaction

b. Zn + Cu(NO3)2 → Zn(NO3)2 + Cu      This is a single replacement reaction.

c. 2H2O2–> 2H2O + O2                         This is a decomposition reaction

d . AgNO3 + NaCl → AgCl + NaNO3      This is a double replacement reaction

convalent bond :

is a chemical bond formed by the sharing of electron between 2 atoms.

it is the direct chemical bond between 2 atoms.

in bond formation atoms are involved here.

electrovalent bond:

is a chemical bond defined as electroststic attraction between 2 atoms.

it is the electrostatic attraction between 2 atoms.

in bond formation, ions are involved here.

hope it

and ur welcm

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