CBSE MATH STUDY: 8th maths :8th Linear Equations of one or two Vari...: 8th Mathematics JSUNIL TUTORIAL,SAMASTIPUR What is an equation? A statement which contains the equ...
NCERT Activity Chapter 02 Acid Bases and Salt Class 10 Chemistry Activity 2.1 Indicator Acid Base Red litmus No Change Blue Blue Litmus Red No change Phenolphthalein Colourless Pink Methyl Orange Pink Yellow Indictors are substance which change colour in acidic or basic media. Activity 2.2 There are some substances whose odour changes in in acidic or basic media. These are called olfactory indicators. Like onion vanilla, onion and clove. These changes smell in basic solution. Activity 2.3 Take about 5 mL of dilute sulphuric acid in a test tube and add few pieces of zinc granules to it. => You will observe bubbles of hydrogen gas on the surface of zinc granules. Zn + H2SO4 --> ZnSO4 + H2 => Pass the Hydrogen gas through the soap solution. Bubbles formed in the soap solution as Hydrogen gas it does not get dissolved in it
Very impressive blog about the CBSE 8th class Math syllabus.Generally children takes homework as a burden but it is very essential for them.They need some practice and daily guidance so that they can understand the topic.Teachers has to jut take care of this thing that they should not give it in bulk.And parents also take care of the kids assignments and the strss related to it.
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