Which of the following statements is true for a synthesis reaction? A single product is formed. Multiple products are formed. A
2 answers:
Answer : The correct option is, A single product is formed.
Explanation :
- Synthesis reaction : It is defined as the chemical reaction in which the multiple substances or the reactants combines then it forms a single product.
The synthesis reaction is represented as,
For example : When the hydrogen gas react with oxygen gas then its forms water as a single product.
The balanced chemical reaction will be :
- Decomposition reaction : It is defined as a type of reaction in which a single larger compound decomposes to give two or more or multiple smaller molecules as a product.
The general representation of decomposition reaction is :
For example : When nitrogen dioxide decomposes then it gives oxygen gas and nitrogen gas as a products.
Hence, the true statements for a synthesis reaction is, a single product is formed.
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Answer: The net ionic equation will be as follows.
Explanation:
The chemical equation for the given reaction is as follows.
We know that a strong acid or base will dissociate completely into a solvent whereas a weak acid or base dissociates partially into the solvent. Hence, the ionic equation will be as follows.
Now, we will cancel the spectator ions from the above equation. Therefore, the net ionic equation will be as follows.
or,
Explanation:
Half life of zero order and second order depends on the initial concentration. But as the given reaction slows down as the reaction proceeds, therefore, it must be second order reaction. This is because rate of reaction does not depend upon the initial concentration of the reactant.
a. As it is a second order reaction, therefore, doubling reactant concentration, will increase the rate of reaction 4 times. Therefore, the statement a is wrong.
b. Expression for second order reaction is as follows:
the above equation can be written in the form of Y = mx + C
so, the plot between 1/[A] and t is linear. So the statement b is true.
c.
Expression for half life is as follows:
As half-life is inversely proportional to initial concentration, therefore, increase in concentration will decrease the half life. Therefore statement c is wrong.
d.
Plot between A and t is exponential, therefore there is no constant slope. Therefore, the statement d is wrong