Removal of carbon particles from air involves the principle of
View Answer Report Error Discuss
The modern periodic table consists of 18 groups and 7 periods. What is the atomic number of the element placed in the 1st group and the 4th period?
The atoms of Germanium, Arsenic, Selenium and Bromine contain ...... shells.
Turquoise is an ore/mineral of
_________ gets converted to phosgene, when exposed to sunlight.
Who was the first man to go to space?
Which of the following elements has the electronic configuration 2, 8, 3?
Fe has 26 protons in its nucleus. What are the number of electrons in Fe2+ (II) ion?
Aptitude and Reasoning
General Knowledge
Puzzles
Interviews
Technical
Certifications
Exams
Job
Roles
True or False
Exams