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(1a) Basic Concepts Of Chemistry (in Hindi)
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Theory concepts with numerical

Vishwa Vivek Sharma
verified & star educator|| IIT-JEE NEET|| 5+ year experience|| hindi & English medium ||Chemistry || youtube- "Sharmaji education"

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छा गए आप तो सर जी।
thanku sir for this course bdw sir ky Aap inn course mah sirf questions krvaoge ya theory
Vishwa Vivek Sharma
10 months ago
both... topicwise.... theory km numerical
Riya Khetan
10 months ago
thank u sir..n keep posting...humara revision acha ho rha h
  1. 44.4k 4.8 views 2 2 Vishwa Vivek Sharma Educator since April 2017 chemical engineer |l IIT-JEE NEET Mentorll 5+ year experiencell chemistry guru |l youtube- "Sharmaji education" 9.2k 8 Followers Following Courses 46 Message


  2. 60 DAYS CHEMISTRY JEE MAIN NEET By, Er. Vishwa Vivek Sharma PART-1 Follow me for advance chemistry Youtube:- Sharmaji Education


  3. Stoichiometry & The moLe Concept


  4. UNIT 1: SOME BASICCONCEPTSINCHEMISTRY Matter and its nature, Dalton's atomic theory: Concept of atom, molecule, element and compound; Physical quantities and their measurements in Chemistry precision and accuracy, significant figures, S.I. Units, dimensional analysis: Laws of chemical combination; Atomic and molecular masses, mole concept, molar mass, percentage composition, empirical and molecular formulae; Chemical equations and stoichiometry


  5. Point to remember Law of conservation of mass does not hold good for nuclear reactions. Law of definite proportions do not hold good for non-stoichiometric compounds eg, Wusitite Fe0,95O OLaw of definite proportions, law of multiple proportions and law of reciprocal proportions do not hold good when same compounds is obtained by using different isotopes of te same element e.g. H2O and 2O


  6. OThe term atom was introduced by Ostwald and the term molecule was introduced by Avogadro OThe concept of element was introduced by Robert Boyle The number of atoms present in a molecule of a gaseous element is called Atomicity OBoth atomic mass and molecular mass are just rations and hence have no units. 01 mol of H2O, 22400 cc of H2O (because it is a liquid). Instead, 1 mol of H2O = 18cc of H2O (because density of H20 1 g/cc) 1 M H2SO4 2N H2SO4


  7. 60 DAYS CRASH COURSE CHEMISTRY JEE MAIN/NEET OMinimum molecular mass of a macromolecular substance can be calculated by analysing it for one of the minor components. Minimum molecular mass is obtained when it is supposed that one molecule of the macromolecule contains only one atom or molecule of the minor component. Atomic molecular mass of nmnor conmonent Massofmnor component per gram of nacromolec ule Minimum molecular mass- Follow me for advance chemistry ER. VISHWA VIVEK SHARMA


  8. PRACTICE MCQS Topic Atomic, Molecular and Equivalent masses


  9. 60 DAYS CRASH COURSE CHEMISTRY JEE MAIN/NEET Question-1 When 100 ml of 1M NaoH solution and 10 ml of 10 N H2SO4 solution are mixed together, the resulting solution will be (a) Alkaline (c) Strongly acidic [DPMT 1982] (b) Acidic (d) Neutral Follow me for advance chemistry ER. VISHWA VIVEK SHARMA


  10. 60 DAYS CRASH COURSE CHEMISTRY JEE MAIN/NEET Answer (d) For NaOH, M=N NiM 100mlx1N 100ml(N) For H2SO4 N2V2-10mlx10N 100ml(N) Hence. NiVM-N2V2 Follow me for advance chemistry ER. VISHWA VIVEK SHARMA


  11. 60 DAYS CRASH COURSE CHEMISTRY JEE MAIN/NEET 1 mole of CH4 contains 4 mole of hydrogen atom ie. 4g atom of hydrogen. Follow me for advance chemistry ER. VISHWA VIVEK SHARMA


  12. 60 DAYS CRASH COURSE CHEMISTRY JEE MAIN/NEET +2 +2.5 (a) Na2SO3+12 Na,s,06+ Nal E- n factor1 Follow me for advance chemistry ER. VISHWA VIVEK SHARMA


  13. 60 DAYS CRASH COURSE CHEMISTRY JEE MAIN/NEET Boron has two stable isotopes, 10 B (1996) and 11 B (81%). The ld appear for boron in the periodic table [CBSE PMT 1990] atomic mass that shou 1S (a) 10.8 (c) 11.2 peiodic table (b) 10.2 (d) 10.0 Follow me for advance chemistry ER. VISHWA VIVEK SHARMA


  14. 60 DAYS CRASH COURSE CHEMISTRY JEE MAIN/NEET (c) oM AgNO3 will react with o.M NaCI to form 0.1M NaN03. But as the volume doubled, conc. of 0.1 0.05M 2 NO- . Follow me for advance chemistry ER. VISHWA VIVEK SHARMA


  15. 60 DAYS CRASH COURSE CHEMISTRY JEE MAIN/NEET (c) wt. of metallic chlode 74.5 wt. of chlorine 35.5 wt, of metal =74.5-35.5=39 Equivalent weight of metal - Weightofmetal x 35.5 weightof chlorine 39 35.5 35.5 = 39 = Follow me for advance chemistry ER. VISHWA VIVEK SHARMA


  16. 60 DAYS CRASH COURSE CHEMISTRY JEE MAIN/NEET The number of atoms in 4.25 g of NH3 is approximately (a) 1x1023 (c) 4 x 1023 ICBSE PMI 1999; MH CET 2003] (b) 2 x 1023 (d) 6 x 1023 Follow me for advance chemistry ER. VISHWA VIVEK SHARMA


  17. 60 DAYS CRASH COURSE CHEMISTRY JEE MAIN/NEET 10 One litre of a gas at STP weight 1.16 g it can possible be (a) C2H2 (c) 02 [AMU 1992] (b) CO (d) CH4 Follow me for advance chemistry ER. VISHWA VIVEK SHARMA


  18. 60 DAYS CRASH COURSE CHEMISTRY JEE MAIN/NEET Follow me for advance chemistry ER. VISHWA VIVEK SHARMA