6 PM Class 10  NCERT SCIENCE - Chemical Reactions and Equations by Yakshu Ma'am| L9 English Medium
Channel: Doubtnut
Date: 2020-07-24

Class 10 SCIENCE Chapter 1. CHEMICAL REACTIONS AND EQUATIONS Notes in English: 

https://drive.google.com/file/d/1rrkawkFF1ucxsowONx-oyi--l-LtJoZn/view?usp=sharing

0:00:00   Introduction to Lecture 9
0:01:12 Question on Combustion reaction (Why is combustion reaction an oxidation reaction?,)
0:02:59 Question on hydrogen gas evolve test (How will you test whether the gas in a reaction is hydrogen ?,)
0:04:14 Question in metal reacting with acid (Why does not silver evolve hydrogen on reacting with dilute sulphuric acid?,)
0:07:09 Question on reaction of two compound (Barium chloride reacts with aluminium sulphate to give aluminium chloride and a precipitate of barium sulphate?,)
0:13:50 Question on reaction of two compound (A white salt upon heating decomposes to give brown fumes and a residue is left behind. Name the salt and write the equation?,)
0:17:20 Question on Redox reaction (What is redox reaction? Identify the substance oxidised and the substance reduced in the reaction.)
0:20:13 Question on type of reaction (Identify the type of reaction when CH4+O2, Pb(NO3)2+KI, CaO+H2O, CuSO4+Zn, )
0:24:45 Question on Rusting of iron (Why do diamond and graphite, the two allotropic forms of carbon evolve different amounts of heat on combustion?, Can rusting of iron take place in distilled water?,)
0:29:24 Question on experimental test (What happen when zinc dust is used instead of zinc granules?, what happen when dilute hydrochloric acid is used instead of dilute sulphuric acid?, what happen when sodium hydroxide is taken in place of dilute hydrochloric acid?,)
0:36:21 Question on identifying elements (Identify A,B, and C are three elements which undergo chemical reactions according to equations and find which element is most reactive? , )
0:40:50 Question on finding X and Y in a reaction (A strip of a metal X is immersed in the aqueous solution of salt YSO4 blue in colour. After sometime, a layer the metal Y from the salt solution is deposited on the strip of the metalX.Whereas the metal X is used for galvanisation, the metal Y is employed in making electric cables,)


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