Question

Which among the given conditions are represented in the following chemical equation?
$2H_2\left(g\right)+O_2\left(g\right)\to 2H_{2}O\left(g\right)$
A. Physical state of the reactants
B. Physical state of the products
C. Energy transfer

• A. Only A
• B. Only B
• C. Both A and B
• D. Only C

Answer 1

The correct option is C Both A and B

A chemical equation can convey the physical state of reactants and products, reaction conditions and the energy transfer in a chemical reaction using appropriate symbols or abbreviations.

In the given reaction
$2H_2\left(g\right)+O_2\left(g\right)\to 2H_{2}O\left(g\right)$
Only the physical states of the reactants and products are represented using the symbol (g). Energy transfer is not represented. Hence, A and B conditions are correct, ie. option C.