Energy is usually given out or absorbed in the preparation of
Energy is usually given out or absorbed in the preparation of
The correct option is C compound
The explanation for the correct answer - (C) Compound
Compound - It is a pure substance made by a chemical reaction of two or more elements in a fixed proportion, and energy is usually absorbed or released during the reaction.
The explanation for the incorrect answer -
(A) Mixture - when two or more substances are mixed physically in any random proportion in such a way that they retain their individual properties is called a mixture.
For example - sand, and air.
(B) Element - It is a pure substance made up of atoms of the same kind and cannot be separated by any chemical method.
For example - Gold, and hydrogen.
(D) None of these - since option (C) is correct, this option is not correct.
Hence, option (C) is correct. Energy is usually given out or absorbed in the preparation of the compound.
compound
The explanation for the correct answer - (C) Compound
Compound - It is a pure substance made by a chemical reaction of two or more elements in a fixed proportion, and energy is usually absorbed or released during the reaction.
The explanation for the incorrect answer -
(A) Mixture - when two or more substances are mixed physically in any random proportion in such a way that they retain their individual properties is called a mixture.
For example - sand, and air.
(B) Element - It is a pure substance made up of atoms of the same kind and cannot be separated by any chemical method.
For example - Gold, and hydrogen.
(D) None of these - since option (C) is correct, this option is not correct.
Hence, option (C) is correct. Energy is usually given out or absorbed in the preparation of the compound.
