Structure of Atom 9th chemistry chapter 2 solved exercise short questions Q#1 : What is nature of charge on cathode rays ? Cathode rays have negative charge on them. Q#2 : Give five characteristics of cathode rays ? Characteristics of Cathode rays : Cathode rays travel in a straight line perpendicular to the cathode surface …
9th chemistry chapter 2 solved exercise short questions Read More »
Structure of Atom 9th chemistry chapter 2 solved exercise MCQs Which one of the following results in the discovery of proton ? (a) cathode rays (b) canal rays 🗸 (c) X-rays (d) alpha rays 2. Which one of the following is the most penetrating ? (a) protons (b) electrons (c) neutrons 🗸 (d) alpha particles …
Fundamentals of chemistry 9th chemistry chapter 1 solved exercise MCQs 1. Industrial chemistry deals with the manufacturing of compounds : (a) in the laboratory (b) on micro scale (c) on commercial scale 🗸 (d) on economic scale 2. Which one of the following compounds can be separated by physical means : (a) mixture 🗸 (b) …
Fundamentals of Chemistry 9th chemistry chapter 1 solved exercise short questions Q#1 : Define Industrial Chemistry and Analytical Chemistry . Industrial Chemistry : ” The branch of chemistry that deals with the manufacturing of chemical compounds on commercial scale , is called Industrial Chemistry .” It deals with the manufacturing of basic chemicals such as …
9th chemistry chapter 1 solved exercise short questions Read More »
Physical states of matter 9th chemistry chapter 5 solved exercise short questions Q#1 : What is diffusion . Explain with an example ? Diffusion: The spontaneous mixing up of molecules of gases by random motion and collision to form a homogeneous mixture . or The movement of a substance from an area of higher concentration …
9th chemistry chapter 5 solved exercise short questions Read More »
Solutions 9th chemistry chapter 6 solved exercise short questions Solved exercise short questions : Q#1 : Why suspensions and solutions do not show tyndall effect , while colloids do ? Suspensions and solutions do not show tyndall effect because ; Reason : In suspensions , particles are so big that light is blocked and difficult …
9th chemistry chapter 6 solved exercise short questions Read More »
Electrochemistry 9th chemistry chapter 7 solved exercise short questions Solved Exercise Short Questions : Q#1 : Define oxidation in terms of electros . Give an example . Oxidation: “Oxidation is the loss of electrons by an atom or ion “ Example : Q#2 : Define reduction in terms of loss or gain of oxygen or …
9th chemistry chapter 7 solved exercise short questions Read More »
Chemical Reactivity 9th chemistry chapter 8 solved exercise short questions Solved Exercise Short Questions Q#1 : Why reactivity of metals increases down group ? Reactivity of metals increases down the group . Reason : Because down the group , Size of atoms increases Number of shells increases electropositive character or metallic character increases Due to …
9th chemistry chapter 8 solved exercise short questions Read More »
