Completed 0 of 10 questions.
What is the symbol of Sodium?
What is the latin name of Sodium?
Whis is most reactive metal? (I have just given their symbols)
What is formula of rust?
What is symbol of Lead?
What is atomic number of Hydrogen(H)?
What is The Causative Organism Of Malaria?
How many total number of Elements are Known?
Producing ringing sound on hammering metals is called?
Which of them is Metalloid?