Many metals react with oxygen to form metal oxides. Potassium and sodium are soft metal which are easily cut exposing a shiny surface which changes to dull rapidly. The change from shiny to dull is ...
Here you get the CBSE Class 10 Science chapter 3, Metals and Non-Metals: NCERT Exemplar Solution (Part-III). This part of the chapter includes solutions for Question No.1 to 36 from the NCERT Exemplar ...
NCERT Exemplar Solution for Class 10 Science Chapter: Periodic Classification of Elements (Part-III)
Here you get the CBSE Class 10 Science chapter 5, Periodic Classification of Elements: NCERT Exemplar Problems and Solutions (Part-III). This part of the chapter includes solutions for Question No.42 ...
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