Home › Karnataka SSLC (Class 10) › Science › Chemical Reactions and Equations › The reaction $Na_2SO_4 + BaCl_2 \rightarrow BaSO…
The reaction $Na_2SO_4 + BaCl_2 \rightarrow BaSO_4\downarrow + 2NaCl$, forming an insoluble solid, is a
Adisplacement reaction
Bcombination reaction
Cdecomposition reaction
Ddouble displacement reaction
Answer & Solution
Correct answer: D. double displacement reaction
1. Here the ions of two compounds are exchanged.
2. This is a **double displacement** reaction; the insoluble BaSO₄ that separates out is a precipitate.
3. Such reactions are also called precipitation reactions.
_Source: Karnataka SSLC (KSEEB) Class 10 Science, Ch1 'Chemical Reactions and Equations', §1.2_
Related questions
A reducing agent in a redox reaction is the substance thatRespiration, in which glucose combines with oxygen to release energy, is best described asThe decomposition of water into hydrogen and oxygen on passing electric current is calledThe unpleasant smell and taste developed in oily foods left exposed for long is calledThe development of a black coating on silver articles left in air is an example ofIn the reaction $CuO + H_2 \rightarrow Cu + H_2O$, the substance that is reduced isIn a chemical reaction, the gain of oxygen by a substance is calledWhen an iron nail is dipped in copper sulphate solution, the reaction that occurs is a