GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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synthesis reactions involve the breaking of bonds
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synthesis reactions usually require energy
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decomposition reactions involve the breaking of bonds
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decomposition reactions change large molecules to smaller ones
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Detailed explanation-1: -The following statements are not true of chemical reactions: Synthesis reactions are directly necessary for energy release from food. Synthesis reactions require energy input to occur.
Detailed explanation-2: -Answer and Explanation: A synthesis reaction involves B. The forming of bonds. In synthesis reactions, larger molecules are built from smaller molecules through the input of energy and creation of new chemical bonds.
Detailed explanation-3: -A chemical reaction involves both breaking and formation of bonds. Often it is also accompanied by the absorption or release of energy. The atoms of the reactants just recombine in a chemical reaction, thus, leading to the restructuring of bonds.
Detailed explanation-4: -Energy is absorbed to break bonds, and energy is evolved as bonds are made. In some reactions the energy required to break bonds is larger than the energy evolved in making new bonds, and the net result is the absorption of energy.
Detailed explanation-5: -A chemical reaction is a process in which some substances, called reactants, change into different substances, called products. During the reaction, chemical bonds break in the reactants and new chemical bonds form in the products.