What is the boiling point of Helium?

What is the oxidation number of sulfur in dithionous acid?

Which of the following is not formed on hydrolysis of PCl5?

Which allotrope of phosphorus is the most reactive?

Why does nitrogen show anomalous properties with respect to other elements in group 15?

Nitrogen atom is represented at 147N. How many electrons does it need to attain the noble gas configuration?

Which of the following is used for vulcanization purposes in the rubber industry?

When liquid nitrogen is poured onto the hand, it slips away without affecting the hand actually. What is this phenomenon…