Tamil Nadu State Board ( Samacheer Kalvi ) Online Test based on Book Back Questions - 7th Standard Science - English Medium - Periodic Classification Of Elements

Samacheer Kalvi 7th Science - Periodic Classification Of Elements - Book Back Questions in English Medium


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Question 1 Of 10

is a relative periodic property.


Question 2 Of 10

The number of periods and groups in the periodic table is.


Question 3 Of 10

group contains the member of halogen family.


Question 4 Of 10

The process of coating the surface of the metal with a thin layer of zinc is called.


Question 5 Of 10

The basis of modern periodic law is.


Question 6 Of 10

Chemical formula of rust is .


Question 7 Of 10

In the alumino thermic process the role of Al is.


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