Which combination will result in a salt and water only?
Sulfuric acid and potassium hydroxide
A salt-and-water-only outcome comes from a neutralisation reaction between an acid and a base.
Sulfuric acid (H2SO4) with potassium hydroxide (KOH): H2SO4 + 2 KOH → K2SO4 + 2 H2O. Only a salt and water are formed.
Nitric acid + carbon dioxide gives no reaction (CO2 is not a base).
Hydrochloric acid + calcium carbonate makes CaCl2, water AND carbon dioxide gas, so not only salt and water.
Sodium hydroxide + oxygen gives no simple salt-and-water reaction.
Hence, Sulfuric acid and potassium hydroxide.
Similar Questions
In a laboratory demonstration, a student adds hydrochloric acid to sodium hydrogencarbonate and collects the gas. How can the student confirm it is carbon dioxide?
What is the typical size range of particles in a colloidal solution?
Which of the following shows oxidation?
A water purification plant uses a process to remove harmful ions. Which type of reaction would most likely be used for this purpose?
Which of the following particles is essential for determining the isotope of an element?
Which process leads to the formation of a positive ion?
Select the option that completes the following chemical reaction by giving the formula of the products X and Y.
2Na + 2CH3CH2OH → X + Y
Read the given statements carefully and select the correct option.
Statement-I: In saturated carbon compounds, valency of all the atoms is satisfied by single bonds between them.
Statement-II: Saturated carbon compounds are normally not very reactive.
What does the size of an atom mainly depend on?
In the presence of sunlight, chlorine is added to hydrocarbons in a very fast reaction. Chlorine can replace the hydrogen atoms one by one. It is called a/an __________ reaction.
Important Questions from Chemistry
What is deposited on iron in the process of Galvanization?
Which element is used for making solar cells?
Which gas is flushed in a bag of chips to prevent the chips from getting oxidized?
Terylene is a type of:
Who was the first Indian lady scientist who worked with organic chemistry and medicinal plant?
