Question

Which of the following can be non redox reactions. [ ]

i) Combination reactions of two compounds

ii) Combination reactions of two elements.

iii) Displacement reactions
iv) Neutralisation reactions

v) Double decomposition reactions

vi) Decomposition of metal carbonates

a) i, iv, v and vi only b) i, ii, iv and vi only c) ii, iii and v only d) All​

Answer 1

Answer:

v) Double decomposition reactions

Answer 2

The correct option is a) i, iv, v and vi only.

EXPLANATION:

• Basically, redox reactions are classified into four types.

1. Displacement reactions
2. Combination reactions
3. Disproportionate reactions
4. Decomposition reactions

• For combination reaction, involvement of at least one element as a reactant is necessary. Two compounds combined to form a third compound cannot be considered as a redox reaction.
• Neutralization reactions are non redox reactions.
• Double decomposition reactions are also non redox reactions.
• Decomposition of metal carbonates are no. redox reactions too.