Question

Chemistry important questions for 10 cbse

Answer 1

1.exothermic and endothermic reactions
2.important uses of washing soda and baking soda
3.compare and contrast the arrangement of elements in mendleev's periodic table and the modern periodic table
4.what is ph scale what is its importance in our daily life
5.difference between ethanol and ethanoic acid on the basis of their physical and chemical properties
6.how can modern periodic table remove various anomalies of mendleev's periodic table
7.chemical properties of acids
8.corrosion and rancidity
9.difference between metals and non metals
10.what are the two properties of carbon which lead to the large number of carbon compounds we see around us
11.oxidation and reduction