Practice free Redox Reactions (Chemistry) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
Which substance is oxidizing agent ?
An oxidizing agent is a substance that donates oxygen or accepts hydrogen. It causes the oxidation of another substance by accepting electrons from it or donating oxygen to it.
Which substance is called reducing agent ?
A reducing agent is a substance that donates hydrogen or accepts oxygen. It causes the reduction of another substance by donating electrons or hydrogen atoms to it.
Oxidation reaction means
Oxidation is the process of removing electrons from a substance. In a redox (reduction-oxidation) reaction, the substance that loses electrons is said to be oxidized.
Which of the following is the characterictic of reducing agent ?
A reducing agent is a substance that loses electrons and undergoes oxidation in a chemical reaction. By losing electrons, it reduces another substance. The correct characteristic of a reducing agent is that it experiences oxidation.
Which of the following is the characteristic of oxidizing agent ?
An oxidizing agent is a substance that gains electrons and undergoes reduction in a chemical reaction. By gaining electrons, it oxidizes another substance. The correct characteristic of an oxidizing agent is that it experiences reduction.
Which of the following statement is true ?
Which of the following statement is wrong ?
The correct answer is that all the given statements are correct, making the option 'Given three statements are wrong' the wrong one. In redox reactions, the oxidizing agent gets reduced, the reducing agent gets oxidized, and oxidation and reduction always occur simultaneously (are supplementary processes).
Which of the following does not occur, when a rod of Zn metal is dipped in an aqueous solution of $ CuSO_4 $ ?
Which of the following observation obtained, when rod of Cu metal is dipped in an aqueous solution of $ AgNO_3 $ ?
Which substance get oxidized in the reaction : $ 2Al + Cr_2O_3 \rightarrow Al_2O_3 + 2Cr $ ?
In the given reaction, $2Al + Cr_2O_3 ightarrow Al_2O_3 + 2Cr$, aluminum (Al) is oxidized. Oxidation refers to the loss of electrons. Here, aluminum changes from an oxidation state of 0 in $2Al$ to +3 in $Al_2O_3$. Thus, Al is the substance that gets oxidized.
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