Constructing Multiple Choice Questions

Substances with a fixed composition and properties that cannot be broken down into simpler substances by physical means.

Substances formed by the chemical combination of two or more elements in a fixed ratio.

Combination of two or more pure substances in no specific ratio.

Changes that do not alter the chemical composition of a substance.

Changes that involve the transformation of one or more substances into new substances with different properties.

A sequence of characters. Can be any length and can contain letters, numbers, and special characters. Examples are "Hello World!" and "12345".

A value that can only be one of two possibilities, typically represented as true or false. Used to indicate specific conditions or outcomes in code.

A data type that represents a whole number, without a fractional component. Examples include 10, 20, -5, and 0.

A data type used to represent numbers with decimal places. Examples include 3.14, 2.718, and -0.5.

A data type used to represent a single character like letter, number, or symbol. A variable can store only one character. Examples include "a", "A", "9", "$", "!".