Write the importance of neutralization reaction.
What is the application of multimedia in the field of advertisement?
Natural gas has no smell but in household use we feel irritation smell. Why?
Which one of the following is metalloid?
Which one is not the fault of Mendeleev's periodic table.
Which one of the following is a very active element.
In which group and period does the element having electronic configuration 1s2 , 2s2 , 2p6 , 3s2 fall on the periodic table.
Which of the following is an example of alkali metal?
Study the part of periodic table given below and answer the question.
|I A||II A||IV A||V A||VI A||VII A||O|
Elements of which group have been kept on the table given alongside? What changes can be observed in the reactivity from top to bottom.