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Chemistry (CY) 2011 GATE Paper without solution | GATE Chemistry Mock Test Series PDF Download

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1. What is the structure of an atom?
Ans. The structure of an atom consists of a nucleus at the center, which contains protons and neutrons. Surrounding the nucleus are electrons, which orbit in energy levels or shells.
2. What is the difference between an element and a compound?
Ans. An element is a pure substance consisting of atoms with the same number of protons. A compound, on the other hand, is a substance composed of two or more elements chemically combined in a fixed ratio.
3. What is the periodic table?
Ans. The periodic table is a tabular arrangement of elements based on their atomic number, electron configuration, and recurring chemical properties. It provides a systematic way to organize and classify the elements.
4. What is an exothermic reaction?
Ans. An exothermic reaction is a chemical reaction that releases energy in the form of heat or light. It generally involves the formation of stronger chemical bonds, resulting in a decrease in the overall energy of the system.
5. How does pH affect chemical reactions?
Ans. pH is a measure of the acidity or alkalinity of a solution. It can affect chemical reactions by influencing the availability of hydrogen ions (H+) or hydroxide ions (OH-) in the solution, which can impact reaction rates and the formation of certain products.
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