Chapter-Wise Multiple Choice Question with brief answers for Class 11 Chemistry: Chapter 1: Basic Concepts of Chemistry Important MCQs Chapter 2 :Structure of Atom Important MCQs (Part 1) Chapter 2 :Structure of Atom Important MCQs (Part 2) Chapter 3 Chemical Bonding Important MCQs (Part 1) Chapter 3 : Chemical Bonding MCQS ( Part 2) More …
Important mcqs Class 11 Chemistry with Answers Chapter wise Read More »
Substances: A sample of pure matter is called a substance or anything whose composition is uniform throughout and has well-defined physical and chemical properties is called a substance. E.g. Silver, Gold, Water, NaCl, etc. Types of Substances: They are of two types: i) Elements ii) Compound Element That pure substance that can’t …
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What is Formula unit? In Chemistry, the simplest ratio between cations & anions in an ionic compound is called formula unit. OR: Simplest unit whose repetition builds crystal is called formula unit. Usually for ionic compounds their empirical formula is their formula unit while for covalent compound their molecular formula is their formula unit. For …
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What is Chemical Formula? The symbolic representation of a compound that shows elements in the compound and also the ratio of their atoms is called chemical formula. As elements are represented by symbols . Similarly, compounds are symbolically represented by chemical formulas . CHEMICAL FORMULAS : Calcium Carbonate = CaCO3 Water = H2O Sulphuric acid …
Do you Know !!! What are free radicals? Free radical Definition Chemical species (atom/molecule) having unpaired valence shell electron. For example : Hydrogen atom having unpaired valence electron (1e-). Similarly, the Chlorine atom has an unpaired valence electron (7e-). Remember !! unpaired electrons indicate an odd number of valence shell electrons . Watch Now !!! …
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