Chemical Reaction and Equation MCQ. We covered all the Chemical Reaction and Equation MCQ in this post for free so that you can practice well for the exam.
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Chemical Reaction and Equation MCQ for Students
Which of the following are correctly matched? 1. Combination reaction – formation of a single product. 2. Decomposition reaction – break down of a single entity. 3. Thermal decomposition – heat is used. 4. Displacement reaction – based on reactivity series.
(a) 1, 2, and 3
(b) 1, 2, and 4
(c) 1, 3, and 4
(d) 1, 2, 3, and 4
Option d – 1, 2, 3, and 4
Which of the following is the observation of the chemical reaction? 1. Change in state 2. Evolution of a gas 3. Change in color 4. Change in temperature
(a) 1, 2, and 3
(b) 1, 2, and 4
(c) 1, 3, and 4
(d) 1, 2, 3, and 4
Option d – 1, 2, 3, and 4
Which of the following are correctly matched? 1. Reactant – a substance that undergoes change 2. Product – new substance 3. Chemical reaction – simplest form
(a) 1 and 2
(b) 2 and 3
(c) 1 and 3
(d) 1, 2, and 3
Option a – 1 and 2
Which of the following is/are correct for a balanced chemical equation? 1. It is based on the law of conservation of mass. 2. The physical states make the chemical reaction less informative.
(a) Only 1
(b) Only 2
(c) Both 1 and 2
(d) Neither 1 nor 2
Option a – Only 1
Which of the statements about the reaction below are correct? 2PbO(s)+C(s)→2Pb(s)+CO2(g) 1. Lead is getting reduced. 2. Carbon dioxide is getting oxidized. 3. Carbon is getting oxidized. 4. Lead oxide is getting reduced.
(a) 1 and 2
(b) 1 and 3
(c) 1, 2, and 3
(d) All of the above
Option b – 1 and 3
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